- "Make no mistake. We will rip you from the history books. Every last trace of you, gone. You will know loss. We will be the architects of your pain. We will build monuments to your destruction. The whole world will bear witness to this. Our ascension. We will blot out the sky, we will bury you in darkness. Know this, and know us. We are your enemy. We are the Settlement Defense Front."
- — Caleb Thies in the Know Your Enemy teaser.
Vice Admiral Caleb Thies is a minor antagonist in Call of Duty: Infinite Warfare. He is a member of the Settlement Defense Front, commander of the Icarius and co-conspirator of the Geneva attack with Salen Kotch.
During Operation Deep Execute, Thies and two SDF Captains Oren Emin and Khosi Siyada are in a pressurized meeting room, where they discuss strategies to help them win the war against the United Nations Space Alliance. Captain Nick Reyes, having infiltrated the ship, succeeds in destroying the life-support system for the sealed chamber; with the door locked from the outside, the Vice Admiral and his colleagues ultimately die of suffocation.
A peer of Admiral Kotch. Intel points to friction between Thies and Kotch as they were identified as rivals at the SDF Naval College.
- His card on the Most Wanted board is the Ace of Hearts.
- Thies first appeared in Call of Duty: Black Ops III, on the map Nuk3town. He was seen giving a speech on the large view screen wall, detailing the plans of the SDF.