In 2009, he served as a senior civilian adviser to Task Force Mountain Warrior in Jalalabad, Afghanistan.
From 2017 to 2019, Jackson served as deputy united states assistant secretary of defense for Afghanistan, Pakistan, and Central Asia.
[3][4][5] In this role, he oversaw all U.S. defense policy in the region, including strategy formulation, security cooperation, budget oversight, and contingency planning.
[6] In 2020, he delivered testimony to the Senate Armed Services Committee regarding peace talks with the Taliban in Afghanistan.
[8][9] In 2011, he deployed in uniform to Afghanistan as executive officer for policy planning for the deputy chief of staff, operations, USFOR-A.