With the arrival of the British East India Company in the early 19th century, followed by the British Raj, Britain expanded its domain over the whole of South Asia, including the Naga Hills. The first Europeans to enter the hills were Captains Jenkins and Pemberton in 1832. The early contact with the Naga tribes was characterized by suspicion and conflict. The colonial interests in Assam, such as tea estates and other trading posts suffered from raids from tribes who were known for their bravery and "head hunting" practices. To put an end to these raids, the British troops recorded 10 military expeditions between 1839 and 1850. In February 1851, at the bloody battle at Kikrüma, people died on both the British side and the Kikrüma (Naga tribe) side; in days after the battle, intertribal warfare followed that led to more bloodshed. After that war, the British adopted a policy of respect and non-interference with Naga tribes.