In Russo-Japanese War that began in February, 1904, a mobilization of the 7th Shidan was determined in August for the purpose of a capture of Lushun Fortress being in unfavorable war situation.
1904年2月に始まった日露戦争では、戦況が芳しくない旅順要塞攻略の為、8月に第7師団の動員が決まった。