Noma took part in the Siege of Port Arthur where he fought in the Battle of 203 Hill along with his division and the other divisions of the Imperial Japanese Army. Sometime during this battle, he was injured and received his scar. As he fought, he stood close by Tamai as they were able to take 203 Hill with Tsurumi claiming victory.
Noma also took part in the Battle of Mukden sometime in Meiji 38 (1905). He witnessed Tsukishima attacking their superior, 2nd Lieutenant Tsurumi for lying to him, and tried to break the both of them apart. When the 7th Division had gathered due to the commotion, Tsurumi asked them to leave both him and Tsukishima alone. Shortly afterwards, Tsurumi and Tsukishima were heavily injured by cannon fire and Noma helped carried their bodies to some sledges to have their wounds treated.
During a blizzard storm, the 7th Division took shelter in a wooden building as Noma, Tamai, and Hyakunosuke Ogata were resting in a room with a stove.