1] Isolationism - a policy of remaining apart from the affairs or interests of other groups, especially the political affairs of other countries. Intervention - the action or process of intervening. Imperialism - a policy of extending a country's power and influence through diplomacy or military force 2] Building the Panama Canal, 1903 - 1914. President Theodore Roosevelt oversaw the realization of a long term US goal - a trans-isthmian canal. Throughout the 1800s, American and British leaders and businessmen wanted to ship goods quickly and cheaply between the Atlantic and Pacific coasts.
