 Thousands of aircrew from the other Dominions—such as New Zealand and Canada—flew with the Royal Flying Corps and Royal Naval Air Service, and their unified successor force after 1 April 1918, the Royal Air Force during the war, without gaining the benefits of command and the administrative experience which came with an independent air service.By the end of the war, four squadrons had seen active service, 460 officers and 2,234 other ranks had served in the AFC, and another 200 men had served as aircrew in the British flying services.Casualties included 175 dead, 111 wounded, 6 gassed and 40 captured.