As much as anyone after Henry the Navigator, Vasco da Gama was responsible for Portugal's success as an early colonising power. Beside the fact of the first voyage itself, it was his astute mix of politics and war on the other side of the world that placed Portugal in a prominent position in Indian Ocean trade. Following da Gama's initial voyage, the Portuguese crown realized that securing outposts on the eastern coast of Africa would prove vital to maintaining national trade routes to the Far East.