Army Definition

Learn about the definition, roles, responsibilities, and examples of armies around the world. Discover the impact of armies in national defense, peacekeeping, and disaster relief efforts.

What is an Army?

An army is a large organized body of armed personnel trained for war, especially on land. It is responsible for protecting a country’s sovereignty, maintaining peace and security, and executing military operations when necessary.

Roles and Responsibilities of an Army

1. National Defense: The primary role of an army is to defend the nation from external threats and safeguard its borders.

2. Peacekeeping: Armies often participate in peacekeeping missions to maintain stability in conflict-affected areas.

3. Disaster Relief: During natural disasters or emergencies, armies provide support in rescue and relief operations.

Examples of Armies

1. United States Army: The largest branch of the U.S. military, responsible for land-based military operations.

2. British Army: The principal land warfare force of the United Kingdom.

Case Studies

The Indian Army played a crucial role in the Kargil War of 1999, successfully repelling an intrusion by Pakistani forces in the region.


– The global military expenditure reached $1.9 trillion in 2020, with the United States accounting for over a third of it.

– The Chinese People’s Liberation Army is the largest standing army in the world, with over 2 million active personnel.

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