soldier at the front; soldier on active service
Refers to a soldier who has been sent to the battlefield or is serving at the front lines. Often used in historical or wartime contexts.
The soldiers at the front said goodbye to their families and headed for the battlefield.
This monument was erected to honor the soldiers who served at the front.
兵士 is a general term for a soldier, while 出征軍人 specifically refers to a soldier who has been dispatched to the front.
従軍 means 'accompanying the army' or 'serving in the military,' often used for non-combat roles like war correspondents, whereas 出征軍人 is specifically a soldier sent to the front.
Compound of 出征 (shussei, 'departure for the front') and 軍人 (gunjin, 'military personnel'). The term is straightforward and its meaning is transparent from its components.