He decided to join the army.

He belongs to the American army.

In a historical context, puppet armies were often manipulated by major powers.

He is good at playing the character of a soldier.

He belongs to the Self-Defense Forces.

He was an ancient soldier.

The Eighth Route Army played an active role in China's war against Japan.

Our army's strategy was successful, and we were able to repel the enemy.

He fought as a soldier in the Union Army.

The Red Army played a significant role in World War II.