The Great War in Africa during World War I was not just fought in Europe but also in East Africa, where the Germans put up a strong resistance using guerrilla tactics. The campaign in East Africa was long and costly, with deadly fighting, harsh climate, diseases, and lack of supplies making it a challenging experience for all involved. The Germans in East Africa surrendered only after being shown proof that the war in Europe was over. The East African campaign, often seen as a sideshow, actually saw many innovations in warfare.