“Barracks / Police Station / Camp / Ton” in Japanese is 屯, read ton, tamuro (とん, たむろ). It is a Jōyō kanji taught in Japanese secondary school (junior & senior high) — the 高手 · Master tier beyond the grade 1–6 Kyōiku set, and appears in words such as 駐屯地 (military base).
What does 屯 mean?
Same sound, different character — the classic trap. Compare them side by side: