German East Africa was a German colony in the African Great Lakes region, which included present-day Burundi, Rwanda, the Tanzania mainland, and the Kionga Triangle, a small region later incorporated into Mozambique. GEA's area was 994,996 km2 (384,170 sq mi), which was nearly three times the area of present-day Germany and almost double the area of metropolitan Germany at the time.
The South West Africa campaign was the conquest and occupation of German South West Africa by forces from the Union of South Africa acting on behalf of the British imperial government at the beginning of the First World War.
The Allies, or the Entente Powers, were an international military coalition of countries led by France, the United Kingdom, Russia, the United States, Italy, and Japan against the Central Powers of Germany, Austria-Hungary, the Ottoman Empire, and Bulgaria in World War I (1914–1918).
Otto Ernst Vinzent Leo von Below served as a Prussian general officer in the Imperial German Army during the First World War (1914–1918). He arguably became most notable for his command, along with the Austro-Hungarian commander Svetozar Borojević, during the victorious Battle of Caporetto in October–November 1917.
The Mesopotamian campaign or Mesopotamian front was a campaign in the Middle Eastern theatre of World War I fought between the Allies represented by the British Empire, troops from Britain, Australia and the vast majority from British Raj, against the Central Powers, mostly the Ottoman Empire. It started after British amphibious landings in 1914 which sought to protect Anglo-Persian oil fields in Khuzestan and the Shatt al-Arab. However, the front later evolved into a larger campaign that sought to capture the key city of Baghdad and divert Ottoman forces from other fronts. It ended with the Armistice of Mudros in 1918, leading to the cession of Iraq and further partition of the Ottoman Empire.
The Egyptian Expeditionary Force (EEF) was a British Empire military formation, formed on 10 March 1916 under the command of General Archibald Murray from the Mediterranean Expeditionary Force and the Force in Egypt (1914–15), at the beginning of the Sinai and Palestine Campaign of the First World War.
The East African campaign in World War I was a series of battles and guerrilla actions, which started in German East Africa (GEA) and spread to portions of Mozambique, Rhodesia, British East Africa, the Uganda, and the Belgian Congo. The campaign all but ended in German East Africa in November 1917 when the Germans entered Mozambique and continued the campaign living off Portuguese supplies.
The Battle of Ngomano or Negomano was fought between Germany and Portugal during the East African Campaign of World War I. A force of Germans and Askaris under Paul Emil von Lettow-Vorbeck had recently won a costly victory against the British at the Battle of Mahiwa, in present-day Tanzania and ran very short of food and other supplies. As a consequence, the Germans invaded Portuguese East Africa to the south, both to supply themselves with captured Portuguese materiel and escape superior British forces to the north.
The Battle of Kahe was fought during the East African Campaign of World War I. It was the last action between German and Entente forces before the German retreat from the Kilimanjaro area. British and South African forces surrounded German positions at Kahe, south of Mount Kilimanjaro. Entente forces inflicted heavy casualties and captured large German artillery pieces while receiving comparably little casualties. German forces retreated from there, further into the interior of the colony.
The Battle of Matamondo was fought during the East African Campaign of World War I.
The Battle of Mlali was fought during the East African Campaign of World War I. In mid-August 1916, the British General Jan Christiaan Smuts led three divisions from Kenya south into the Imperial German colony of Tanganyika in order to seize and disrupt their vital railway. The German commander Paul von Lettow-Vorbeck was informed by his scouts of the British movement and sent Captain Otto to investigate.
The Battle of Kibata was fought north-west from Kilwa during the East African Campaign of World War I. The British theatre commander, South African General Jan Smuts, planned to seize Kibata and prevent German forces from withdrawing southwards.
The Battle of Behobeho was fought during the East African Campaign of World War I.
The Battle of Narungombe was fought between the German Empire and Portugal during the East African Campaign of World War I.
The Battle of Zanzibar was an encounter between the German Kaiserliche Marine and the British Royal Navy early in the First World War. While taking on coal in the delta of the Rufiji River in German East Africa, the German cruiser SMS Königsberg learned that a British cruiser, HMS Pegasus, which had been part of the Royal Navy's Cape Squadron sent to counter Königsberg, had put in at Zanzibar for repairs. Königsberg's captain, Commander Max Looff, decided to attack Pegasus while she was in port.
The Togoland campaign was a French and British invasion of the German colony of Togoland in West Africa, which began the West African campaign of the First World War. German colonial forces withdrew from the capital Lomé and the coastal province to fight delaying actions on the route north to Kamina, where the Kamina Funkstation linked the government in Berlin to Togoland, the Atlantic and South America.
The Kamerun campaign took place in the German colony of Kamerun in the African theatre of the First World War when the British, French and Belgians invaded the German colony from August 1914 to March 1916. Most of the campaign took place in Kamerun but skirmishes also broke out in British Nigeria. By the Spring of 1916, following Allied victories, the majority of German troops and the civil administration fled to the neighbouring neutral colony of Spanish Guinea. The campaign ended in a defeat for Germany and the partition of its former colony between France and Britain.
The leaders of the Central Powers of World War I were the political or military figures who commanded or supported the Central Powers.
Brigadier general William Frederick Savery Edwards (1872–1941), commonly referred to as Brigadier-General W. F. S. Edwards, was a decorated British military officer who was appointed by the British Colonial Administration as the first Inspector General of the Uganda Protectorate Police, which later became the Uganda Police, and the simultaneous overall commander of the then British East Africa Police.
South Africa's participation in the First World War occurred automatically when the British Government declared war on Germany in August 1914. Due to her status as a Dominion within the British Empire, South Africa, whilst having significant levels of self-autonomy, did not have the legal power to exercise an independent foreign policy and was tied to the British declaration.
Germany 
East Africa (1913-1918)