Meanings

to win one's first battle (game, match)

inside the encampment

order to go into battle

fighting as a volunteer mercenary

arriving at camp (military)

to form a circle

leaders

ceremony held before going into battle

departure of students for the front (in WWII)

line abreast

excessively strong labor pain

afterpains (after childbirth)

labor-inducing drug

maternity taxi

disposition of troops

teaching body

position warfare

to lead (an advance)

first wave (of troops, immigrants, etc.)

arrival at a military camp