a bridgehead on the enemy's shoreline seized by an amphibious operation;
"the Germans were desperately trying to contain the Anzio beachhead"
an initial accomplishment that opens the way for further developments;
"the town became a beachhead in the campaign to ban smoking outdoors"
"they are presently attempting to gain a foothold in the Russian market"
- If tensions were to escalate, the beachhead of Xiamen could become a battlefront.
- They were attacked unexpectedly from both sides as soon as they landed at a beachhead.