守兵 is read as しゅへい (shuhei) and means guards.
しゅへい
shuhei
しゅびへい
guards
しゅせい
(being on the) defensive
しゅびてき
defensive
しゅきゅう
conservatism
しゅびがため
making replacements for defensive purposes in the late inning of a game
まもりほんぞん
guardian deity
しゅそく
code
まもりふだ
paper charm
ぐんぴょう
armed forces
へい
(common) soldier
みんぺい
militia
ほへい
infantry