Peter Bergen is CNN's national security analyst, a vice president at New America and a professor of practice at Arizona State University. He is the author of "United States of Jihad: Investigating America's Homegrown Terrorists." The opinions expressed in this commentary are those of the author; view more opinion articles on CNN.

(CNN) British soldier Lance Corporal Jamie Webb, 24, died from the blast of a roadside bomb in southern Afghanistan in March, 2013.

Canadian Master Corporal Byron Greff, 28, died in a suicide bombing in Kabul in 2011.

Those are just two of the names of the many hundreds of dead soldiers from NATO countries who have fought in Afghanistan to defend the United States.

It is the first and only war waged under NATO's Article 5 collective defense obligation that an attack on one member country is an attack on all its members. That war was, of course, triggered by an attack on President Donald Trump's hometown of New York on September 11, 2001.

The total number of dead soldiers in Afghanistan from the United Kingdom is 455, from Canada, it is 158, from France, 86 and from Germany, 54.