summoning circle;  magic circle (esp. in fictional settings);  magic square
 troop headquarters;  stronghold;  inn designated for use by a daimyo (Edo period)
 going into battle;  departure for the front
 battle formation;  military formation
 battle formation;  lineup (e.g. for a game)
 inside the encampment;  within the camp
 one's first campaign;  one's first battle
 forming a circle;  circular formation (orig. in battle);  huddle;  ring
 one's own ground;  one's own position;  one's own area of the field (soccer, rugby, etc.)
 square formation (of troops);  magic square
 battle formation;  battle array;  lineup (of a team, etc.);  cast;  staff
 to pitch camp;  to set up camp
 labour pains;  labor pains;  birth pains;  contractions
 battle array;  battle formation;  battlefield
 to encamp;  to take up a position
 fighting with one's back to the wall;  having burnt one's bridges;  last stand;  from strategy of general Han Xin in the Battle of Jingxing
 inner sanctum;  inner temple;  inner shrine;  sanctuary;  chancel
 press corps;  group of reporters
 children's game in which the aim is to occupy the other's home base;  taking a place;  securing a position
 criminal investigation squad (team)
 to encamp;  to take up positions
 faculty;  professorate;  group of professors
 arriving at camp (military);  (a court noble) attending a government office
 summer campaign of the siege of Osaka (1615 CE)
 (construction of an) argument
 winter campaign of the siege of Osaka (1614 CE)
 Nishijin silk fabrics;  Nishijin brocade
 field ration (Sengoku period)
 outer sanctum;  nave;  transept
 summer campaign of the siege of Osaka (1615 CE)
 Nishijin silk fabrics;  Nishijin brocade
 winter campaign of the siege of Osaka (1614 CE)
 each encampment;  strong (wind);  fierce;  intermittent
 (lineup of authors engaged in a) war of words
 single column (in marching)