Western imperialism in Asia as presented in this article pertains to Western European entry into what was first called the East Indies. This was sparked early in the 15th century by the search for trade routes to China that led directly to the Age of Discovery, and the introduction of early modern warfare into what was then called the Far East. By the early 16th century the Age of Sail greatly expanded Western European influence and development of the Spice Trade under colonialism. There has been a presence of Western European colonial empires and imperialism in Asia throughout six centuries of colonialism, formally ending with the independence of the Portuguese Empire's last colony East Timor in 2002. The empires introduced Western concepts of nation and the multinational state. This article attempts to outline the consequent development of the Western concept of the nation state.