Although the Satsuma army kept the drawn-out siege of Kumamoto Castle even after it transferred the main force to the northern front, the drawn-out siege failed and the front moved to the south and east of Kumamoto Castle when Shohaigun (rear attack force) of the government army disembarked and established communications with Kumamoto Garrison.
薩軍の主力が北部戦線に移った後も熊本城の長囲は続けられていたが、官軍衝背軍の上陸と熊本鎮台との連絡がついたことから長囲策は破綻し、戦線は熊本城の南部東部に移った。