East African Campaign (1914-1918) Part III: The Sting of Defeat

The Invasion Force

As the first skirmishes broke out on land and at sea, the British Empire prepared a death blow to German East Africa. Given the rapid successes mounting against Germany’s other colonies, it expected much to be accomplished with one hastily assembled force. This force was Indian Expeditionary Force B. Assembled in India, it soon was stripped of many of its best men and top-notch gear. These resources were diverted to deal with the oncoming entrance of the Ottoman Empire on Germany’s side. Indian Expeditionary Force B was led by General Arthur Edward Aitken of the Indian Army. He had not done much of note in his career, but had good familial and political connections. This gave him a command position, albeit one in a sideshow. Originally IEF B was built around Aitken’s own 16^th Poona Brigade, and his mission was to seize Dar-es-Salaam and its radio station. However, the 16^th Poona Brigade was taken away, while his superiors gave him a far more ambitious plan. He was to land his force at the port town of Tanga. After seizing it, he was to move north towards Stewart’s IEF C, which was currently squaring off against Lettow-Vorbeck, and secure the colonial border. After this he was to conquer all of German East Africa. Like many of the famed British military disasters of history, the upcoming campaign was to be undone by an incredible stream of horrible decisions and terrible luck.

Replacing the Poona Brigade was the 27^th Bangalore Brigade under General Richard Wapshare (but sans its cavalry, artillery, and pioneers which were redirected elsewhere). This was the only brigade in the force to hold an all-British battalion, the Loyal North Lancashires. One Regular Army brigade was added, with the 63^rd Palamcottah Light Infantry and the 98^th Infantry. The infantry was further filled out with Imperial Service troopers. These were not part of the British army, but soldiers assigned to various Indian princes. They had practically been private security forces and inexperienced in true warfare. Those that were borrowed were placed in a brigade under Brigadier General Tighe. The Indian Service units had originally been equipped with outdated Lee-Enfield long rifles and had barely any time to adjust to the newer shorter models handed out before the East Africa invasion. They did not have machine guns at all. A few finally got the weapons, but at the last minute and with no time to properly train. Finally Aitken was given the 61^st King George’s Own Pioneers, the 28^th Indian Mountain Battery, and various small detachments of support personnel such as railway specialists and signalmen. All of these units would not consolidate until they arrived at Tanga, making it impossible for Aitken to study his force as whole and reorganize it accordingly.