1 文書を見つけるための辞書。

• bridgehead, foothold
• 橋頭保, 橋頭堡, 海岸堡
• an area in hostile territory that has been captured and is held awaiting further troops and supplies; "an attempt to secure a bridgehead behind enemy lines"; "the only foothold left for British troops in Europe was Gibraltar"
• 一層の軍と供給を待ちながら捕捉されて、保持される敵地の領域