"Put them in a spot where they have no place to go, and they will die before fleeing. If they are to die there, what can they not do? Warriors exert their full strength. When warriors are in great danger, then they have no fear. When there is nowhere to go they are firm, when they are deeply involved they stick to it. If they have no choice, they will fight."
Pure Dying Ground from Art of War
"Put them in a spot where they have no place to go, and they will die before fleeing. If they are to die there, what can they not do? Warriors exert their full strength. When warriors are in great danger, then they have no fear. When there is nowhere to go they are firm, when they are deeply involved they stick to it. If they have no choice, they will fight."
Exactly, if you want to win over an island burn your ships so you wont leave and have no choice but to fight and win.
Classic Caesar move.