I've been fighting the 4 top militaries in my current game for years now. They just won't quit. The Altarians keep donating ships way on their side of the gigantic galaxy. I've been just sending them to the nearest enemy planet/starbase within my life support range and letting them die annoying the enemy since it would take half the game for them to make it to me.

They just donated a battleship to me. I've had these before, but this one has seen previous combat. 8M Attack, 6A Defense, and 64HP. I flew it straight through the heart of the Thalian's empire and it blew up absolutly everything they threw at it, which was a lot. At least 12 heavily armed frigates, 4 battleships, and an assortment of smaller vessels. It finally got down to 4 HP, but there were no enemies left. Looking at the Thalian's military graph shows that they just lost about an eighth of their fleet though I'm not the only one attacking them.

This is the first time an AI has donated a decent ship to me. Just thought I'd share my wonderment at the luck of that one battleship.