Battle of Ngomano

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. Portugal was part of the Entente and a belligerent, employing troops in France and Africa; so a force under Major João Teixeira Pinto was sent to stop von Lettow-Vorbeck from crossing the border. The Portuguese were flanked by the Germans, while encamped at Ngomano on 25 November 1917. The battle saw the Portuguese force nearly destroyed, with many troops killed and captured. The capitulation of the Portuguese enabled the Germans to seize a large quantity of supplies and continue operations in East Africa until the end of the war. East African Campaign (World War I) By late November 1917, the Germans in East Africa were left with few options if they wanted to continue the war. They were outnumbered drastically and were split up into several different columns. The two largest of these, under Theodor Tafel and Paul Emil von Lettow-Vorbeck, were completely cut off from each other. Although von Lettow-Vorbeck's column had defeated a large British force at the Battle of Mahiwa he had lost a large number of troops and expended virtually his entire supply of modern ammunition. With only antiquated weapons and no means of resupply, von Lettow-Vorbeck decided to invade Portuguese East Africa in hopes of acquiring sufficient supplies to continue the war. There was no legal impediment to this attack; acting at Britain's request, Portugal had seized 36 German and Austro-Hungarian merchant ships anchored in front of Lisbon on 24 February 1916 and Germany had declared war on Portugal on 9 March 1916.