Seems like he's got a General somewhere.
If you send 11 drillers, and the Pirate kills 10 because of the global ability of the General, then that leaves only 1 driller left for the actual combat.
That also means that the puke-yellow sub coming in on the right is scheduled to do no damage whatsoever to that outpost.
There is no avoiding war; it can only be postponed to the advantage of others.
- Niccolo Machiavelli