The Imperial War Museum is a museum in the United Kingdom dedicated to documenting the history of warfare and its impact on society. It was established in 1917 and has several branches, with the main one located in London. The museum houses a vast collection of artifacts, documents, and exhibits related to World War I, World War II, and other conflicts. Visitors can explore various galleries that showcase military vehicles, personal stories, and historical memorabilia. The museum also offers educational programs and events to help people understand the complexities of war and its effects on individuals and communities throughout history.