偃武 is read as えんぶ (embu) and means armistice.
えんぶ
embu
げんなえんぶ
Genna armistice (period following the fall of Osaka Castle in 1615)
ぶんぶ
literary and military arts
こうぶ
nobles and soldiers
ちちぶ
dusky tripletooth goby (Tridentiger obscurus)
かんぶ
civilian and military man
せいぶ
Saitama Seibu Lions (abbr)
martial arts demonstration
けんむ
Kenmu era (of the Northern Court; 1336.2.29-1338.8.28)
ぶ
military force
えいぶ
distinguished (surpassing) valor (valour)
ゆうぶ
bravery
てんかふぶ
unify the nation by force