The happy warriors in the green hats This is the story of the Nigerian Regiment-an imperial regiment led by British officers and manned principally by Hausa tribesmen who formed part of the force that fought the Germans in East Africa during the First World War. The account, written by one of those British officers, describes the earliest activities of the regiment in West Africa before travelling with them, across the continent, to new challenges. The author's affection and pride in these troops shines through every page and they were in his estimation some of the finest troops the British Empire had to offer. The reader is shown their perpetual good humour and outstanding courage and skill as soldiers in the field. Distinguished by their green headdress and machete they became a force with whom the enemy admitted 'they would take no liberties.' Their East African allies good humouredly hailed them with the call 'Yum Yum'-so convinced were they that they were cannibals! The pivotal battles of the campaign are described in detail together with many personable anecdotes making this an original and different view of the Great War.