The Aceh War; also known as the Dutch War or the Infidel War (1873-1914); was an armed military conflict between the Sultanate of Aceh and the Netherlands which was triggered by discussions between representatives of Aceh and the United Kingdom in Singapore during early 1873.

The war was part of a series of conflicts in the late 19th century that consolidated Dutch rule over modern-day Indonesia.

The Royal Netherlands East Indies Army (Koninklijk Nederlands Indisch Leger; KNIL) was the military force maintained by the Netherlands in its colony of the Netherlands East Indies (also known as the Dutch East Indies). Pictures From History