beachhead Synonyms

foothold toehold railhead battle stations advance guard airbase staging area front line battlefront battle line jumping-off point battle position base complex staging ground battle lines battle area arena of war area where opponents meet area where opponents clash area of military operations area of military operation area of combat operations active combat zone strategic position airhead avant-garde stronghold fastness debarkation bridgehead blockhouse battle bastion basis base acropolis aceldama field footing springboard spearhead post position outpost outguard lodgment line garrison front abutment