His role is to fulfill his responsibilities as a leader.

It is important to understand the importance of health.

The War in Iraq affected many people.

If a nuclear war occurs, humanity will be extinct.

The Civil War is one of the bloodiest wars in American history.

The Cod Wars were fought between the UK and Iceland.

The Wars of the Roses was a civil war that occurred in 15th century England.

The Sikh Wars were a series of wars fought between the United Kingdom and the Sikh Kingdom.

During the era of the Cold War, the world was divided into two major powers.

During the era of the Cold War, the world was divided into two major powers.