“soldier” in Japanese is 兵, read hei, hyou (へい, ひょう). It is a Grade 4 Kyōiku kanji, taught in year 4 of Japanese elementary school, and appears in words such as 兵士 (soldier).
What does 兵 mean?
昔は兵が多かった。
Same sound, different character — the classic trap. Compare them side by side: