друга лінія оборони
International legion for the Defence of Ukraine (ILDU) / International Legion of Territorial Defence of Ukraine / Ukrainian Foreign Legion
second line
second-line aircraft
line of defence
deployment line; line of deployment (LD); line of departure
meters per second (m/s)
second in command (2i/c , 2IC)
second lieutenant
second order effect
floating-point operation per second (FLOP)
captain second rank
fuel flow (kilogram/second)
centimeter-gram-second (CGS)
meter-kilogram-second-ampere system (MKSA)
meters per second (MPS)
second cause
second mean chord
additional second lieutenant
second-trip echo
second wave attack theory
second classman
second commander
second for service
second echelon maintenance
second element
second John
second level rater
second strike force
second theater
second-in-command
second-mission aircraft
second-strike strategy