The Strait of Gibraltar (ジブラルタル海峡 Jiburarutaru Kaikyō) is a narrow strait which connects the Atlantic Ocean to the Mediterranean Sea, separating Gibraltar and the southern Iberian Peninsula in Europe from Morocco in Africa.
The strait provides the only direct connection by sea between the Mediterranean and the Atlantic.
The Legitimacy Kingdom's 37th Mobile Maintenance Battalion were deployed to the strait in order to prevent the Object Tri-Core from breaking through the strait and resupplying blockaded bases. As part of their preparations, the Legitimacy Kingdom placed a mined net, referred to as the Goal Tape, across the strait. When the Tri-Core broke through the Goal Tape, part of it fouled one of the Object's shark anchors. As the battle between the Tri-Core and the Baby Magnum continued, Quenser Barbotage noticed the Tri-Core's problem and used his Hand Axe explosives to detonate the mines and cause the net to foul another shark anchor, causing the Tri-Core to collapse under its own weight.