Beachhead (film)
WordNet
noun
(1) 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"
(2) A bridgehead on the enemy's shoreline seized by an amphibious operation
"The Germans were desperately trying to contain the Anzio beachhead"