allied — Allied forces or troops are armies from different countries who are fighting on the same side in a war.
accommodating — If you describe someone as accommodating, you like the fact that they are willing to do things in order to please you or help you.
on deck — Nautical. a floorlike surface wholly or partially occupying one level of a hull, superstructure, or deckhouse, generally cambered, and often serving as a member for strengthening the structure of a vessel. the space between such a surface and the next such surface above: Our stateroom was on B deck.