How did poisonous gas affect how world war 1 was fought?

Who as a president served as a navy fighter pilot in world war 2? Which year was Norman manley declared national hero? Why did a machine gun lead so many deaths? Who named the sans culottes? Who first shot in the WW1? How many women soldiers on D-Day? How is trench foot spread? How much did a World War 2 bomb weigh? Who were the political leaders during the Holocaust? Could the allies have beaten Germany without a second front in Europe? The communist guerillas in south Vietnam were called the? In After World War 2 what did President Truman want to do? Who became known as a hero amongst the Jewish people for his role during the Holocaust? Where were the Australian prisoners of war held? How did the hijackers get through security on the September 11th attacks? What made men enlist for the Army in World War 1? What year was the Nuremberg trial? What is meant by military technology? What are the following wars in chronological order from oldest to most recent in American history world war 1 Vietnam civil revolutionary world war 2 war of 1812 Korean desssert storm? What are three characteristics of the military?