[1][2] Bratton enlisted in the Arizona Air National Guard in 1987, where he worked in aircraft control and early warning systems.

In 2024, he was promoted to lieutenant general and became the Space Force's chief strategy and resourcing officer.

[3][4][5] On 22 December 2023, he was promoted to lieutenant general and became the Space Forces’s chief strategy and resourcing officer.

April 1987 - December 1987, Student, Aircraft Control and Early Warning Systems, Keesler AFB, Miss.

August 2005 - July 2007, Weapons Officer, Det 2, AZ ANG, Sky Harbor IAP, Phoenix, Ariz. 10.

May 2015 - June 2017, Cyber Ops Group Commander, 175th Wing, Warfield ANG Base, Md.

February 2021 - August 2021, Space Training and Readiness Command Planning Lead, Peterson AFB, Colo. 19.