Dallas Alexander was a member of Joint Task Force 2 (JTF 2), an extremely high-readiness and precise special operations forces unit. JTF 2 exists to protect Canadian national interests and combat terrorism and threats to Canadians at home and abroad. Dallas was a member of a sniper team that was responsible for the world's farthest confirmed sniper shot while on a deployment in Iraq.

Post-service, Dallas has pursued his music career, focusing on singing, songwriting, and live performances.