First Anglo-Ashanti War

The First Anglo-Ashanti War was from 1823 to 1831. In 1823, Sir Charles MacCarthy, rejecting Ashanti claims to Fanti areas of the coast and resisting overtures by the Ashanti to negotiate, led an invading force from the Cape Coast. He was defeated and killed by the Ashanti, and the heads of MacCarthy and Ensign Wetherall were kept as trophies. At the Battle of Nsamankow, MacCarthy’s troops (who had not joined up with the other columns) were overrun. Major Alexander Gordon Laing returned to Britain with news of their fate.

The Ashanti swept down to the coast, but disease forced them back. The Ashanti were so successful in subsequent fighting that in 1826, they again moved on the coast. At first they fought very impressively in an open battle against superior numbers of British allied forces, including Denkyiras. However, the novelty of British Congreve rockets caused the Ashanti army to withdraw. In 1831, the Pra River was accepted as the border in a treaty, and there were thirty years of peace.

Source: military.wikia.org