hval, indupitably. However in a resources race there is no obvious way that we could extend any significant or realistic military force against another world power.
Whilst a multi-capable maritime weapons system could effect anti-piracy coordination, do you need something like an MPA? There are plenty of other platforms that can do that.
Didn't someone just say that it was a nonsense piting a half billion pound warship against a rust bucket pirate ship and a skiff with an outboard motor. Add the astronomic cost of an MRA4 and you would be well into fairy land.