drone war (world’s first drone war)

first fire mixture / first-fire mixture

world war

World Food Programme (WFP)

world geodetic system (WGS)

World Geographic Reference System (WGRS); georef

World area forecast center

world geodetic system

world map of principal aeronautical features

world meteorological organization (WMO)

world-wide communication

World Weather Watch

world aeronautical chart

world fallout

world geographic reference system

world polyconic grid

FPV drone (first-person view)

FPV kamikaze drone (first-person view)

first-person view (FPV) drone

credible first strike capability

first aid facility

first aid kit

first echelon maintenance

first echelon medical equipment maintenance

first hand information

first impression report (FIR) (post exercise)

first lieutenant = (брит.) lieutenant

first light

first responder (emergencies)

first response

first response unit

First Sergeant (1SGT)

first watch