How many letters does the top answer for “troops belonging to or allied with your own military forces” have?

The most common answer is friendly (8 letters).

Crossword clue: troops belonging to or allied with your own military forces

1 answer found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

friendly 8 letters wn-def

characteristic of or befitting a friend

troops belonging to the enemy's military forces 50% similar → hostile