Reducing the size of the callus or corn may result in less pressure or friction and less pain. 1  Soak your foot or other affected area in warm, soapy water for 5 minutes or until the skin softens. 2  Wet the pumice stone. 3  Rub the pumice stone on the wet callus or corn with light to medium pressure for 2 to 3 minutes. This will remove dead skin. Use the stone daily, and rinse the stone after each use.
Military history of the United States during World War II. The military history of the United States in World War II covers the war against Germany, Italy, Japan and starting with the 7 December 1941 attack on Pearl Harbor.
Quick Answer. The United States joined World War II as a response to the bombing of Pearl Harbor in Hawaii by the Japanese on Dec. 7, 1941. The country had been keeping itself isolated from the global war; however, after the attack, the country declared war on Japan on Dec. 8, 1941. Continue Reading.