credible first strike capability

first fire mixture / first-fire mixture

right to launch a first strike

first-strike intention

credible deterrence

credible information

credible intelligence

credible threat

credible indications of activities

have no credible information that

multiple-strike capability

precision 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

first-aid skills

first-line reserve

individual first-aid kit (IFAK)

first lights

Petty Officer First Class (PO1)

Private First Class (PFC)

Sergeant First Class (SFC)

tactical first aid kit