Timeline Major operations Airstrikes Major insurgent attacks 2002 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 Massacres Other Operation Cobra's Anger was a US-led offensive in Helmand province in southern Afghanistan involving about 1,000 Marines and 150 Afghan troops, as well as a Danish armor attachment.

The goal of the operation was to disrupt Taliban supply and communications lines in the strategic Nawzad valley of Helmand province, and to reopen the strategic coalition supply lines, leading into FOB Cafferetta, a USMC/ANA outpost.

[2] The offensive began three days after an announcment by then-president of the United States Barack Obama detailing a plan to increase the US presence in Afghanistan by another 30,000 troops.

This was the first time the Osprey were used in combat operations in Afghanistan,[4] as well as the newly implemented M1150 Assault Breacher Vehicle.

Throughout the recent years, the Taliban had planted thousands of homemade bombs, and dug in positions throughout the valley, in preparation for defense against coalition forces, that had been in this region since the early days of OEF.