Original illustration from British Battles on Land and Sea circa 1880.
Info from wiki: The Anglo-Ashanti Wars were a series of five conflicts between the Ashanti Empire, in the Akan interior of the Gold Coast (now Ghana), and the invading British Empire and British-allied African states that took place between 1824 and 1901. The wars were mainly due to Ashanti attempts to establish strong control over the coastal areas of what is now Ghana. Coastal peoples, such as the Fante and the inhabitants of Accra, who were chiefly Ga, came to rely on British protection against Ashanti incursions.The Third Anglo-Ashanti War, also known as the "First Ashanti Expedition", lasted from 1873 to 1874. In 1869, a German missionary family and a Swiss missionary had been taken from Togo to Kumasi. They were still being held in 1873.
The British Gold Coast was formally established in 1867 and in 1872, Britain expanded their territory when they purchased the Dutch Gold Coast from the Dutch, including Elmina which was claimed by the Ashanti. The Dutch had signed the Treaty of Butre in 1656 with the Ahanta. The treaty's arrangements proved very stable and regulated Dutch-Ahanta diplomatic affairs for more than 213 years. This all changed with the sale of the Dutch Gold Coast. The Ashanti invaded the new British protectorate.
General Garnet Wolseley with 2,500 British troops and several thousand West Indian and African troops (including some Fante) was sent against the Ashanti, and subsequently became a household name in Britain. The war was covered by war correspondents, including Henry Morton Stanley and G. A. Henty. Military and medical instructions were printed for the troops. The British government refused appeals to interfere with British armaments manufacturers who sold to both sides.