The second wave of imperialism refers to a period of renewed colonial expansion by European powers, the United States, and Japan from the late 19th century into the early 20th century, characterized by the acquisition of territories and the establishment of political and economic dominance over various regions, particularly in Africa and Asia. This era saw intensified competition among imperialist nations and marked a shift in strategies, including the use of military force and diplomatic negotiations to secure control over resources and markets.