Definitions for "beachhead"
an area in hostile territory that has been occupied and is held to allow aditional troops and supplies to enter.
a footing gained on hostile shores by an army.
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"