 Complete the following phrase:  The resulting five-year campaign crippled the whole British Army through disease, especially yellow fever. Out of 89,000 British soldiers who served in the West Indies, 43,747 died of yellow fever or other tropical diseases. Another 15,503 were discharged, no longer fit for service, or deserted. The islands of Martinique, Guadeloupe and several ports in Saint-Domingue were captured in 1794 and 1795 by expeditionary forces under General Charles Grey, but the British units were almost exterminated by disease. 