The primary mission of an army is to conduct offensive or defensive operations on land, usually in a designated theater of war. This may involve engaging in combat with enemy forces, capturing and holding ground, or providing support to other military branches and allies.

Army personnel are typically organized into units, ranging in size from a few soldiers to several thousand, and may be deployed domestically or internationally. Training and discipline are key components of army life, and soldiers may be required to endure long periods of separation from their families and endure challenging physical and mental conditions.

The army is usually led by officers, who are responsible for planning and executing military operations. The highest-ranking officer in an army is typically the Chief of Staff, who works closely with the government and civilian leaders to develop military strategy and policy.

Overall, the army is an important institution in maintaining national security and safeguarding a country’s interests both domestically and abroad.