All tournaments in the UK that I can think of do allow allies *... Sometimes there may be a stipulation that the ally must conform to the tournament’s theme. eg if the theme was 1200-1300 AD Western Europe then only armies from that specific time period and geographical area could be used (so eg Mongols in Europe couldn’t use an east Asian ally....not that they got one 😎).
Allies are fun, add variety and options, and give me a chance to scr*w myself up with ill conceived difficulties...and they guarantee a ‘1’ for PIPs at the vital moment 😵 🎲
* and no, Paul, I’m not forgettin’ the Northern Kupppp 😊
I like the allies inclusion in the lists, it can add subtle changes to an army line up by adding a little weight to the battle line or light troops for bad terrain.Ive witnessed in some tournament's that it can make some armies quite potent if handled well.