The document discusses the rise of British imperialism in India. It describes how the British East India Company established trading posts in India in the 1600s and 1700s. As the Mughal Empire declined, the East India Company's power grew and it began building its own military force composed mainly of Indian soldiers led by British commanders. A key moment was the Battle of Plassey in 1757, where British forces led by Robert Clive defeated the Nawab of Bengal, establishing British political and military control over Bengal. This marked the beginning of British rule over India.