A soldier loyal to Afghan's central government in Kabul in 2002 in Khost, Afghanistan. (Chris Hondros/Getty Images)

Before 2001, Afghanistan did not appear very often on the front pages of American newspapers. But over the last decade, the United States has fought one of its longest wars in that country. The U.S. government spends more than $3.6 billion a month on actions there. References to Afghanistan have become commonplace — in the news, in domestic politics, in schools and universities.

But how much do we actually know about the country? And how much do we know about the war?

Take the following quiz to test your knowledge about Afghanistan and the war.

And read more Afghanistan coverage here:

- 10 years on, Afghan Americans see lost decade

- Gallery: Life and war in Afghanistan for October 2010

- Faces of the Fallen