The primary fighting force in a nation's army. This foot-soldiers are task with vary of task and usage of equipment from Anti-Tank Guns, to Rifles to Machine Guns. Virtually in a period where Tanks dominate the battlefield, infantry are technically helpless without support. However by chance and right equipment they can destroy them by ease.
In Milihime, they are the class with the highest evasion and able to capture Resource Sectors. They can also recover fast. However being infantry, anything can easily wipe them down. Until it reach the Mop-up phase.