The United States gained control of the Panama Canal zone in 1903 through a revolution supported by the U.S. against Colombian rule over Panama. The canal opened in 1914, cutting shipping times and costs significantly by providing a passage between the Atlantic and Pacific Oceans. It allowed the U.S. to project military and economic power globally. In the late 20th century, control of the canal passed to Panama through treaty as it had become an economic driver for the region and vital shipping route.