Related by context. All words. (Click for frequent words.) 68 Aegis destroyers 67 Arleigh Burke DDG 67 KDX III 65 Aegis warships 64 Block IIA 64 JS Myoko 63 2 Block IIIA 63 2 Block IIIB 63 Aegis equipped 63 Aegis BMD capability 62 missile destroyers 62 Submarine Launched 61 destroyers submarines 61 AIM #C 60 AIM #D 60 Vertical Launching System 60 P 3Cs 60 Bulava ballistic missiles 60 midget submarines 59 Sovremenny 59 Aegis radar 59 Laser Guided Bombs 59 SSBNs 59 Bulava missiles 59 AESA radar 59 destroyers cruisers 58 missiles torpedoes 58 Borey class 58 Borei class 58 AN/TPS-# 58 antisubmarine 58 Su #SM 58 Tactical Tomahawk 58 INS Shardul 58 Zumwalt destroyers 58 multirole fighters 58 AN/TPQ-# 58 AIM 9X Sidewinder 58 Anzac frigates 57 ro ro vessels 57 amphibious assault ships 57 replaceable assemblies 57 F/A-#E/F aircraft 57 SSGNs 57 Arleigh Burkes 57 FPSO hull 57 Navy F/A-#E/F 57 Aegis destroyer 57 mine countermeasure 57 naval destroyers 57 KDX II 57 SPY 1F 57 multirole 57 Harpoon missiles 57 E #mm f/#.#L 57 P 8As 57 Aegis Cruisers 57 allied navies 57 STANDARD Missile 57 Borei class nuclear 57 AESA radars 57 FREMM frigates 57 Nodong missiles 57 stealth frigate 57 P 3C Orions 57 Chokai 57 Su #MK# 57 Air Cushion LCAC 57 BrahMos missiles 57 Exocet anti 56 ballistic missiles SLBMs 56 Su #MKI fighters 56 JMSDF 56 supersonic cruise missiles 56 stealth frigates 56 Harpoon missile 56 INS Beas 56 SLBM 56 KC #J tankers 56 Tunguska M1 56 Aegis Weapon Systems 56 Patriot PAC 56 INS Subhadra 56 JHSVs 56 Scorpenes 56 SAS Spioenkop 56 Aegis BMD 56 intercontinental ballistic missiles ICBMs 56 THAAD missile 56 MH #R helicopters 56 USS Harpers Ferry 56 Aegis Weapon System 56 Aegis Combat 56 multirole aircraft 56 VisionMaster FT 55 F #Ks 55 AH #D 55 Active Electronically Scanned Array 55 P 3C 55 Aegis cruisers 55 submarines frigates 55 ballistic missile submarines 55 quayside cranes 55 ECPINS 55 Sukhoi fighters 55 LITENING 55 Evolved Sea 55 roll-on/roll-off ships 55 Litening 55 APS #C 55 USS Bunker Hill 55 P 3C aircraft 55 INS Airavat 55 fighter aircrafts 55 amphibious warfare ship 55 Su #MK 55 UH 1Y 55 UH 1N 55 Phalanx Close 55 #,# ton KDX 55 Merkava Mk 55 Supramaxes 55 MH #R aircraft 55 INS Talwar 55 Aegis cruiser 55 missile corvettes 55 quay cranes 55 maritime prepositioning 55 Sovremenny class destroyers 55 Koreasat 55 P 3C maritime 55 tactical airlifters 55 EC# helicopters 55 AWDs 55 AIM #C# 55 SU #MKI 55 Hsiung Feng 55 multimission helicopter 55 PNS Zulfiquar 55 MH #S helicopters 55 shipborne 55 F/A-#C/D 55 AGM #R 55 Starter Generators 55 JS Kirishima 55 Yury Dolgoruky 55 minehunting 54 F #Is 54 Mig #K 54 ESSM 54 INS Rajput 54 AN/APG-# 54 Agni Prithvi 54 amphibious warships 54 Mk# [002] 54 AHTSs 54 iRobot Warrior 54 Inmarsat Fleet 54 INS Betwa 54 JDAM kits 54 DF #A 54 Iskander tactical 54 Sukhoi Su #MKI 54 heavylift 54 Aegis Ballistic Missile Defense 54 Carrier Strike Groups 54 GRSE 54 Paveway II 54 SSGN 54 PATRIOT Advanced Capability 54 INS Ganga 54 USS Wasp LHD 54 MiG #KUB 54 EA #G aircraft 54 Tochka U 54 FPSO vessels 54 IRBMs 54 Hyundai Mipo 54 Navy destroyers 54 Sineva missiles 54 MiG #K naval 54 Panavia Tornado 54 Borei class submarines 54 shore gantry cranes 54 Mazagon Dock 54 radar evading stealth 54 PHIBRON 54 ramjet propulsion 54 Amphibious Squadron PHIBRON 54 Su #M# 54 USS Chung Hoon 54 CH #D 54 torpedo tubes 54 Mazagaon Dock 54 TOFTs 54 P 3C patrol 54 USVs 54 BRAHMOS 54 S #PMU 54 F/A-#E/F 54 ECPINS ® 54 MQ 8B 54 KFELS 54 Bulava submarine launched 54 Missile Segment 54 MPSVs 54 Dynamic Positioning 53 Kamov helicopters 53 Small Diameter Bombs 53 warships submarines 53 T #TS 53 LPDs 53 M#/M# Bradley 53 Sineva 53 TEU container vessels 53 Selective Availability Anti Spoofing 53 multimission 53 DuraCOR 53 Rigid Hull 53 navy destroyers 53 SLBMs 53 BrahMos cruise missiles 53 multipurpose amphibious assault 53 MH #S helicopter 53 RAM Guided Missile 53 AuraGen VIPER 53 Aegis BMD ships 53 STOVL aircraft 53 D5 missile 53 Akash missiles 53 #MK 53 ballistic missile launchers 53 JSAT Corporation 53 UHD ™ 53 supercruise 53 NLOS C 53 Ramform 53 MK# lightweight 53 Dmitry Donskoi 53 minesweeping 53 Stratofortress bombers 53 Boeing P 8A 53 VTUAV 53 AIM 9M Sidewinder 53 Predator UAV 53 Havyard Leirvik 53 KC #J 53 C #J aircraft 53 ANZAC frigates 53 waterjet propulsion 53 SUAV 53 cruiser USS Chosin 53 ballistic missile submarine 53 Ulstein Design 53 Advanced Capability 53 AN/FPS-# 53 Topol M ICBM 53 built Capesize vessel 53 MiG #Ks 53 Enhanced Paveway II 53 TLAM 53 P 8A Poseidon 53 MH #R helicopter 53 AMRAAM 53 Poseidons 53 Tu #M# 53 MiG #K fighters 53 antimissile systems 52 EOD robots 52 Scorpene submarine 52 antiship missiles 52 LHDs 52 AHTS vessels 52 Mazagon Docks 52 Block IIIA 52 AH 1W 52 wheeled armored vehicles 52 civilian mariners 52 F/A-# F 52 Vertical Launching Systems 52 G ATOR 52 ATACMS 52 CC #J 52 M# launcher 52 C 5Ms 52 Rolling Airframe Missile 52 Cygnus spacecraft 52 Evolved SeaSparrow Missile 52 amphibious ships 52 reachstackers 52 ROKAF 52 Pusnes 52 S #PMU# 52 Block IIB 52 rubber tyred gantry cranes 52 MV Prantalay 52 SkySat 52 Jinhaiwan 52 Sejjil 52 Korean Nodong 52 unmanned airborne 52 missile frigates 52 BVR missiles 52 dismounted soldier 52 JS Kongo 52 supersonic cruise missile 52 SH #B 52 Aegis Destroyer 52 Electronic Portable ADEPT 52 BLACK HAWK helicopters 52 inertial navigation system 52 F #I 52 HEMTT A4 52 Navy P 8A 52 Aircraft Carriers 52 USS Shiloh 52 Littoral combat 52 Kongsberg Gruppen 52 INS Aditya 52 AESA Radar 52 #,# ton Samidare 52 Pechora 2M 52 Heron UAVs 52 appliqué armor 52 E #mm f/4L 52 Hyuga 52 Cosmo SkyMed 52 MRAP variants 52 Tor M2E 52 Unmanned Surface 52 Kuang Hua 52 destroyers 52 SRBM 52 layered Ballistic Missile 52 MPSV 52 Trident ballistic missile 52 radar evading aircraft 52 #L# [002] 52 LAIRCM 52 LAV A2 52 UH #As 52 CTOL 52 EA 6B 52 C 5Bs 52 RTGs 52 turbojet engines 52 Havyard 52 Su #MKIs 52 Anti Submarine Warfare ASW 52 Arleigh Burke Class 52 antisubmarine warfare 52 Harpoon anti 52 Pantsir S1 52 Su #S 52 MC #J 52 Sukhoi fighter planes 52 Yantar shipyard 52 Dassault Mirage 52 Tomahawk Block 52 OSVs 52 amphibious warship 52 Jalashwa 52 Spearfish torpedoes 52 JT9D 52 KC #J Hercules 52 Cougar Mastiff 52 Doosan DST 52 ultra deepwater drillships 52 vehicles UAVs 52 ballistic missiles SLBM 52 STX OSV 52 interceptor boats 52 USS Antietam 52 Kitty Hawk Carrier Strike 52 Heron UAV 52 Samidare 52 MHz transponder 52 self propelled howitzer 52 Bombardier #MP 52 KD Lekiu 52 C2PC 52 intercepting ballistic missiles 51 ballistic missile SLBM 51 Mi #N 51 II D5 51 TEU container ship 51 AH 1Z 51 Longbow Apache 51 JHSV 51 KC #Js 51 antiship missile 51 powered submarines 51 tiltrotor aircraft 51 supersonic cruise 51 Dhruv helicopters 51 UCAVs 51 Koreasat 6 51 guided missile destroyers 51 MALE UAV 51 AEGIS BMD 51 handysize vessels 51 JASSM ER 51 Seakeeper 51 Block IIF 51 CROWS II 51 surface combatant 51 RTG cranes 51 NH# TTH 51 supersonic cruising 51 FREMM 51 Super Etendard 51 Boeing AH #D 51 MV Nimalawa 51 ton destroyer 51 handymax 51 Musudan 51 SLS Shipbuilding 51 fleet replenishment oiler 51 NH# helicopters 51 NH#s 51 Heron unmanned aerial 51 INS Shivalik 51 Ramform Sterling 51 remote sensing satellite Resourcesat 51 F# Joint Strike 51 Sniper XR 51 indigenously built 51 multirole fighter 51 submarines homeported 51 Alenia Aermacchi 51 precision guided munition 51 Myoko 51 AgustaWestland helicopters 51 Dhruvs 51 F/A-#E/F Super Hornet 51 NH# helicopter 51 P 8A 51 ultra deepwater semisubmersibles 51 Su #MK# fighters 51 multirole fighter aircraft 51 Sparrow Missile 51 missile corvette 51 newbuild vessels 51 MSDF destroyer 51 sensor payloads 51 Joint Standoff Weapon 51 Lockheed Trident D5 51 Brahmos missiles 51 AVEVA Marine 51 optionally manned 51 antiship 51 submarines 51 Wärtsilä Ship Design 51 submarines destroyers 51 Abraham Lincoln Carrier Strike 51 II D5 Fleet 51 Rear Adm. Kazuki Yamashita 51 Amphibious Assault Ship 51 UH #J 51 IMSK 51 USS Belleau Wood 51 Rigid Inflatable Boats 51 stealth warship 51 Waterlase R 51 Capesize newbuildings 51 electro optical sensor 51 Erieye radar 51 USS Tarawa LHA 51 WGS Block 51 AEGIS radar 51 Aselsan 51 Molniya 51 Shirase 51 Littoral Combat Ships LCS 51 Vik Sandvik 51 Minuteman IIIs 51 WGS satellites 51 Defense THAAD 51 Anchor Handling Towing 51 MKI Mirage 51 deadweight tonnes DWT 51 AIM 9X 51 pipelay vessel 51 Mig #s 51 GMCP 51 hypersonic missiles 51 Intermediate Range Ballistic 51 RAC MiG 51 decommissioned Peacekeeper 51 System ATACMS 51 ballistic missile IRBM 51 MEYER WERFT 51 BrahMos cruise missile 50 sonobuoys 50 unmanned reconnaissance 50 M#A# Abrams Main 50 Trident ballistic missiles 50 strategic airlifters 50 Turbomeca engines 50 MiG #K fighter 50 RMK Marine 50 Rolls Royce Turbomeca 50 strategic airlifter 50 supersonic fighter jets 50 Harpoon Block II 50 EH# helicopter 50 Supramax bulk 50 RF 4C 50 ATR# #s 50 AN/ALE-# 50 Howaldtswerke Deutsche Werft HDW 50 Dhanush missile 50 Seawolf class 50 Man Transportable Robotic 50 Small Diameter Bomb 50 Mistrals 50 HMCS Windsor 50 HC #J 50 class destroyer DDG 50 T AKE ships 50 CIWS 50 PT6 engine 50 tactical UAV 50 BrahMos supersonic 50 NLAW 50 F #P frigates 50 Chemstar Venus 50 MSDF destroyers 50 Transas 50 CAMCOPTER S 50 Air Combat Maneuvering 50 C #Hs 50 Air Force ROKAF 50 Telstar #R 50 Topol M intercontinental ballistic 50 Zumwalt destroyer 50 anti submarine torpedoes 50 Paveway IV 50 AN/PVS-# 50 Paveway 50 Drillship 50 J. Nolasco DaCunha 50 #Es [002] 50 Full Flight Simulators 50 helicopter airframes 50 Su #MKI aircraft 50 MLRS 50 JSOW C 50 repel Somali pirate 50 Tor M1 50 trimaran hull 50 EC#s 50 F #P frigate 50 shipset 50 Surface Combatant 50 Navy RMN 50 Sineva missile 50 Nulka 50 BQM 50 Aegis BMD Weapon 50 TEU container vessel 50 INS Kalpeni 50 inshore patrol 50 antiaircraft missile 50 Adour engines 50 P3C Orions 50 Superfortresses 50 THAAD radar 50 AMNS 50 TACNAV 50 RTM# 50 aluminum superstructure 50 Laser JDAM 50 USS Kearsarge LHD 50 Eidesvik Offshore 50 Admiralty Shipyards 50 SPACEWAY TM 50 Topol M SS 50 JCSAT 9 50 AN/AQS-#A 50 GPS IIF 50 multisensor 50 ALHs 50 M#A# Abrams Tank 50 Inmarsat FleetBroadband 50 Electro Optical EO 50 AW# helicopters 50 Sembawang Shipyard 50 fiber optic gyro FOG 50 maritime interdiction 50 M#A# Paladin 50 Spanish shipbuilder Navantia 50 destroyer Atago 50 F/A-# fighters 50 DubaiSat 50 Special Warfare Combatant 50 HMAS Hobart 50 KFELS Super 50 range Rodong missiles 50 ALFS 50 USS Milius 50 missile frigate 50 ProtoStar II 50 Erieye 50 post panamax 50 C2SAT 50 IFVs 50 PLS A1 50 C4I systems 50 Adaptive Diagnostic 50 Stealth bombers 50 #S tanks 50 kinetic warhead 50 Reaper UAVs 50 AGM #E 50 Amphibious Ready Group 50 INS Virat 50 WestPac Express 50 Tomahawk Cruise 50 AN/PRC-# C radios 50 AH #A 50 testfired 50 INS Brahmaputra 50 KVH TACNAV 50 electro-optical/infrared sensors 50 Sukhoi #MKI 50 Mil Mi 50 Full Flight Simulator 50 Watchkeeper UAV 50 Panamax bulk 50 Hellfire II 50 Spacebus 50 F/A-#F 50 RoRo vessels 50 System VLS 50 Navy EA #G 50 SLBM launchers 50 Frigates 50 AV 8B 50 Mi #T 50 marinized 50 AH #D Block 50 GSF Development Driller 50 C#J 50 corvettes 50 supersonic stealth 50 Mounted Warrior 50 Taepo Dong 50 suezmax vessels 50 Smerch multiple 50 Severnaya Verf 50 manufactured indigenously 50 #Ms [002] 50 USS Mesa Verde 50 ULSTEIN 50 LRASM 50 Rocket Propelled Grenade RPG 49 MiG #K 49 F 5E 49 Raytheon GBU 49 Sukhoi fighter 49 LVSR 49 INS Shakti 49 Orbital Taurus 49 F #Bs 49 Swedish Gripen 49 COMPTUEX 49 Suntory Mermaid II 49 Topol Ms 49 Electronically Scanned Array 49 P3C Orion aircraft 49 M-TADS/PNVS 49 stealth destroyer 49 undergoing refit 49 Air Warfare Destroyers 49 SDD phase 49 F 4E 49 AIM 9X Block 49 ASTRA 3B 49 USS Peleliu LHA 49 Sungdong 49 INS Vikramaditya 49 turboshaft engines 49 Hatf II 49 CAC2S 49 SES AMERICOM AMC 49 Northrop Grumman RQ 49 IL #TD 49 AEGIS 49 Intelligence C4I 49 XTAR EUR 49 Kamov Ka 49 LITENING AT 49 #-# freighters [001] 49 WGS satellite 49 offboard 49 Mazagon Dock Ltd 49 EuroHawk 49 6A Texan 49 Aframax crude 49 P 8A MMA 49 Veripos 49 autonomous PowerBuoy 49 TOW 2B 49 avionic systems 49 GATM 49 multirole combat aircraft 49 USS Essex LHD 49 times Bonnie Canner 49 RQ 7B Shadow 49 supersonic Tu 49 Admiral Vinogradov 49 Topol missiles 49 Railgun 49 F #I fighter jets 49 locating radars 49 SBSS satellite 49 self propelled Howitzers 49 KSLV 49 torpedo launchers 49 HIMARS 49 Transfer Vehicle HTV 49 Irkut Corporation 49 littoral combat ships 49 AW# helicopter 49 Station CROWS 49 Tu #M# bombers 49 MH #J 49 missile cruiser Moskva 49 semi submersible rigs 49 MaxxPro MRAP 49 BETSS C 49 System IPMS 49 Advanced EHF 49 Joint Helmet Mounted 49 Mikoyan Gurevich MiG 49 mainstay Arleigh Burke 49 datalinks 49 amphibious assaults 49 AEHF satellite 49 ultra deepwater drillship 49 BRP Pampanga 49 electro optical infrared 49 tactical airlifter 49 MRTTs 49 ships USNS 49 Keppel Singmarine 49 Su #SK 49 JT#D 49 Inshore Patrol 49 #,# ton Sazanami 49 MiG #K Fulcrum 49 EA #Gs 49 Anchor Handling Tug 49 F 4s 49 fiber optic gyroscopes 49 Short Range Ballistic 49 indigenously designed 49 SH #F 49 USS Chosin 49 Small Diameter Bomb SDB 49 TOW missile 49 TEU containerships 49 intercepts ballistic missile 49 UH 1Y Huey 49 SEWIP Block 49 Unmanned Aerial Vehicles UAVs 49 stealthy supersonic 49 SmartMarine 3D 49 Ulstein Verft 49 Autonomous Underwater Vehicle AUV 49 supersonic BrahMos 49 RQ 4A Global 49 Su #MKI 49 Falcon #LX [001] 49 Aegis ballistic missile 49 electro-optical/infrared 49 C #H Hercules 49 RQ 4N 49 TKMS 49 JASDF 49 AARGM 49 Lockheed Martin LCS 49 Thales Alenia 49 USS Mustin 49 ballistic missile Agni 49 Honeywell TFE# 49 cutter suction dredgers 49 Arleigh Burke destroyers 49 Scud C 49 Smerch 49 Stratellite TM 49 HanseYachts 49 Globemaster III airlifter 49 Coral shredded 49 ultra deepwater rigs 49 Anbyon 49 kilogram warhead 49 Reliability Enhancement 49 P3C 49 seamanship navigation 49 Ultra Deepwater Floaters 49 deadweight tons dwt 49 USS Ticonderoga 49 COSCO Shipyard Group 49 capable Hatf 49 Technologies Kinetics 49 Yakhont missiles 49 SLAM ER 49 Joint Experimentation 49 W# warheads 49 TEU vessels 49 Raptor stealth 49 Advanced Hawkeye 49 LCTs 49 Eisenhower Carrier Strike 49 Improvement Program SEWIP 49 TDRS K 49 Ishikawajima Harima 49 Colombo Dockyard 49 Bulava ballistic missile 49 Extended Range ER 49 OSV fleet 49 TRIDENT II 49 C #Js [001] 49 CH #E 49 Yantai Raffles Shipyard 49 navy frigates 49 Kilo submarines 49 AP 3C Orion 49 guided munition 49 PROTECTOR RWS 49 Roymar Class 49 KOMPSAT 49 Tranche 3A 49 ENVG 49 INS Trishul 49 Predator Reaper 49 ro ro vessel 49 USS Nitze 49 ATGMs 49 minehunter 49 Topol M missile 49 unmanned rotorcraft 49 JTRS approved 49 WESCAM 49 TADS PNVS 49 reachback 49 VTOL UAV 49 Smerch MLRS 49 Eidesvik 49 Yakhont 49 Hoku MEA 49 Eurocopter helicopters 49 Antei 49 FADEC equipped 49 Boeing #NG aircraft 49 UEWR 49 Phalanx CIWS 49 GLONASS satellites 49 SCUD B 49 SATCOM WGS 49 H IIA 48 FalconSat 48 INS Suvarna 48 Missile Cruiser 48 multirole combat 48 panamax bulk 48 Intercontinental Ballistic Missiles ICBMs 48 Scorpene submarines 48 M#A# [002] 48 Ronald Reagan Carrier Strike 48 MTU #V 48 deepwater semisubmersibles 48 manned spaceships 48 VINASAT 1 48 USS Spruance 48 Electronic Warfare EW 48 Polarcus Nadia 48 E 2C 48 Mazagon Dock Limited 48 Borei 48 GE CF# 48 Su #MKM 48 CVW 48 GE Honda HF# 48 Pantsyr 48 Oto Melara 48 Damen Shipyards 48 Standard Missile 48 MiG #E 48 Apstar 48 Akula class 48 SAS Isandlwana 48 architects Van Peteghem 48 Seatronics 48 JSTARS aircraft 48 Hyundai Samho Heavy Industries 48 Sazanami 48 dock USS Ponce 48 antitank weapons 48 DESRON 48 air warfare destroyers 48 littoral waters 48 LTS# 48 De Zeven Provincien 48 Roketsan 48 B#NG 48 Zelzal missile 48 SaM# 48 laser designators 48 UH 1H 48 IAI ELTA 48 Urgent Operational Requirement 48 Northrop Grumman Sperry 48 M#A# rifles 48 SATCOM terminals 48 Lightweight Laser Designator 48 Iskander missile 48 Shadow UAS 48 Sukhoi SU 48 PANAMAX 48 Brahmos supersonic cruise 48 Arotech Armor Division 48 UT# [004] 48 Thermite TVC 48 MiG #N 48 Expeditionary Strike Group 48 handysize 48 ballistic missile Prithvi 48 NAVSO 48 Inertial Navigation System 48 sites CMS#.NET 48 drybulk vessel 48 System NLOS LS 48 Laser Guided Bomb 48 ATACMS missile 48 LCACs 48 Rongsheng Shipbuilding 48 JHMCS 48 Navy P 3C 48 self propelled howitzers 48 bomber squadrons 48 USS Leyte 48 deadweight tonnage DWT 48 multirole jet 48 Maritime Prepositioning Force 48 amphibious warships USS Kearsarge 48 #A Stealth 48 mm Howitzers 48 nanosatellites 48 tactical unmanned aerial 48 UHF SATCOM 48 ST Kinetics 48 OSV Newbuild Program 48 System MUOS 48 Sukhoi #MKIs 48 Vehicle SUGV 48 Lays Keel 48 Cruiser Destroyer Group 48 Pantsir 48 SourcePoint 48 La Foudre 48 Littoral Combat 48 Tu #MS bombers 48 TUAV 48 CH #K 48 intercontinental missiles 48 TACNAV systems 48 Kongsberg Gruppen ASA 48 MQ 4C 48 conventional warhead 48 Prithvi missiles 48 Rheinmetall Defence Electronics 48 AFVs 48 JCSAT 48 INS Arihant 48 Raytheon APG 48 Topol M missiles 48 USS Safeguard 48 THAAD interceptors 48 Saeqeh 48 BrahMos 48 pound GBU 48 Littoral Combat Ship LCS 48 tethered aerostat 48 Sikorsky S# helicopters 48 AHTSVs 48 LR# [002] 48 ASTRA 1L 48 Knighthawk helicopters armed 48 Orbital Pegasus 48 Freestyle Cruising ships 48 MH #R 48 Launch Vehicle EELV 48 Patrol Boats 48 Advanced Cruise Missiles 48 Orbital Sciences Taurus 48 Minotaur IV