Under the leadership and Presidency of William Tubman, the TWP took a pro-American stance in international policy, encouraged foreign investment, promoted industrialization and embarked on a mass modernization program of Liberia's domestic infrastructure. This led to a period of economic prosperity during the 1960s, was credited with putting Liberia on the map and establishing the country as a modern power in Africa. Although opponents of Tubman's government accused it of being authoritarian, Liberia was widely regarded internationally as being a stable and successful nation in the region whilst other African states were undergoing civil wars and political strife.