>>64691338
The black pearl is a normal ship and the skeleton pirates are not immune to bisection, so the japs would have defeated them eventually.

>>64691360
They could keep recovering their ships from Davy Jones' Locker if they had these powers.

Dutch, easily
the skeletons would be effectively supersoldiers; no rations required, no sleep, no exhaustion, no pain
furthermore because they can come back even if scattered, very little care would have to be taken towards preserving lives

this would not allow them to fight on the seas with impunity, but what would occur is likely guerilla wars at every naval base Japan has off the mainland
Dutch submarines would disembark marine contingents to harass and impede Japanese efforts while also impeding merchant shipping through boarding actions; this would inevitably lead to operational contraction. The Japanese would be unable to effectively supply any offensive actions.

Do the entire Dutch navy have skellyman powers or just the one ship? Because one ship can't be in every battle.