US Army African-American crew of a M3 light tank taking a break after taking Coburg, Bayreuth, Germany, 25 Apr 1945. The M3 series American tank, commonly known as the General Stuart, was built by the U.S. Army Corps and is credited as the genesis behind today's American armor force. (Courtesy of the U.S. National Archives)

It’s been 100 years since the world went to war in the summer of 1914, launching a global conflict that destroyed empires and claimed the lives of 9 million combatants and tens of millions of civilians.

World War I, the “War to End All Wars,” not only redrew the map of Europe and the Middle East but also revolutionized the battlefield with technological breakthroughs such as the airplane and a new “killing machine” given a harmless-sounding name for security purposes: the tank.

Read the full interactive media report here.