However, swords were still normally carried in combat by cavalrymen and by officers of other branches throughout the 19th and early 20th centuries, both in colonial and European warfare. For example, during the Aceh War the Acehnese Klewangs, a sword similar to the machete, proved very effective in close quarters combat with Dutch troops, leading the Royal Netherlands East Indies Army to adopt a heavy cutlass, also called klewang (very similar in appearance to the US Navy Model 1917 Cutlass) to counter it. Mobile troops armed with carbines and klewangs succeeded in suppressing Aceh resistance where traditional infantry with rifle and bayonet had failed. From that time on until the 1950s the Royal Dutch East Indies Army, Royal Dutch Army, Royal Dutch Navy and Dutch police used these cutlasses called Klewang.