Chinese occupation of German Hankou

In 1895, in order to thank Germany for intervening in Liaoning against Japan, the Chinese government forced Japan to withdraw from the Liaodong Peninsula and they acquired the Treaty of Shimonoseki and allowed Germany to open a concession in China. On October 3, Germany opened its first concession in China in Hankou. Its total area was 600 acres.

Occupation
The day following the Chinese ceasing of relations, 200 Chinese police officers entered the concession and occupied the 600 acre territory, taking the guards and administrators captive. China later declared war on August 14, 1917.

Aftermath
Following the end of the war, Germany gave up all rights to Hankou in the Treaty of Versailles and China turned it into the First Special Zone of Hankou.