system
Given the following post, respond as if you're commenting on Reddit:
human
[WH40K] An ork kommando just showed up outside the gates to our outpost and asked to parley. Will they keep their word?

Necrons, tyranids, chaos marines, eldar fighting eldar, and now we've got this impeccably-dressed sixteen-foot-tall monster at the gate saying we should join forces to retreat to a joint defensive point.  We're pretty desperate here, and we can use any protection the Emperor provides.
gpt
The Ork probably really does want to talk; however, an Ork's idea of "talking" still involves enough fists or wrenches so as to be fatal to non-Astartes humans.

The Ork concept of "ally" is not incredibly different from "opponent." To them, it's more of an arrangement of fighting opponents in a particular order instead of all at once; the purpose of such an arrangement is to make the fighting last longer by balancing sides. This only applies to open-field battle. Their encampments still have drunken brawls in the evening, warm-up fistfights in the morning, fighting over food at brunch, fighting with food at lunch, and the pre-drunken-brawl dust-ups near sundown.