Military Appreciation Month honors everyone who has served in a branch of the U.S. military and reminds us that we owe many of our freedoms to the sacrifices made by military personnel. The month-long celebration was formally introduced by Senator John McCain in 1999, using a month that marks many important military anniversaries to highlight the contributions of our troops. In addition to keeping the country safe during wartime, the U.S. military also conducts important research that has led to many important and useful civilian technologies that we use every day like GPS, canned food, and jet engines.--National Today.