Jake Tapper to discuss his book on Combat Outpost Keating assault Dec. 4

ABC News Senior White House Correspondent and award-winning journalist Jake Tapper will discuss his new book, "The Outpost: An Untold Story of American Valor," from 7 p.m.- 8 p.m. in the Conference Rooms on Tuesday, Dec. 4. A book signing will follow the discussion.

Tickets are free for National Press Club members and $5 for non-members.

To register, click here. Club members should enter the discount code “outpost” to obtain free admission. The author will only sign copies purchased through the National Press Club. Purchase of a book does not include admission.

"The Outpost" reveals what really happened during the Taliban assault on Combat Outpost Keating in Afghanistan, detailing the history of the camp and the stories of the heroic—and ultimately doomed—soldiers who were at the mercy of often reckless commanders. Complete with unforgettable photographs and useful maps, "The Outpost" brings home the harrowing day-to-day experiences of U.S. troops serving overseas in a way few journalists have managed to do.

Just before 6 a.m. on Oct. 3, 2009, Combat Outpost Keating was viciously attacked by Taliban insurgents. The 53 U.S. troops stationed there, at the bottom of three steep mountains, were severely outnumbered by nearly 400 Taliban fighters. Though the Americans ultimately prevailed, their casualties made it one of the war’s deadliest battles for U.S. forces.

Later, a Pentagon investigation concluded that there was no reason for Outpost Keating to have been there in the first place.

This event is a fundraiser for the National Press Club Journalism Institute.