Call of Duty Wiki

Settlement Defense Front

8,872pages on
this wiki
Add New Page
Talk0 Share

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.

Settlement Defense Front
Settlement Defense Front Triangle Logo IW
Leader(s) SDF High Council
SDF High Command
Salen Kotch (K.I.A.)
Caleb Thies (K.I.A.)
Vlad Derhachov (K.I.A.)
Appears in Call of Duty: Black Ops III (easter egg)
Call of Duty: Infinite Warfare
Country Mars
Type Insurgency/terrorist organization
Motto "Mars Aeternum", "Death is no Disgrace"
BO3topright IW top right icon

"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 your skies, we will bury you in darkness. Know this and know us. We are your enemy. We are the Settlement Defense Front."
Caleb Thies

The Settlement Defense Front (SDF), or SetDef, are the main antagonistic terrorist faction in Call of Duty: Infinite Warfare. They fight against the UNSA and SATO.



SDF propaganda

SetDef is composed of off-world insurgents who seek to control the solar system. They see themselves as the true inheritors of the solar system, and believe their way of life to be "stronger, more pure," than the people of Earth.

In SetDef's mind, living off-world has made them more worthy of ruling the solar system, while those who reside on Earth are weak "fat cats," living off the bounty of the off-world colonies.

They value functionality over style, an attitude reflected in everything from their ships to their weapons and armor, which is modular, with everything designed to protect them from the harshness of space. They have re-purposed service robots into military roles, adding to their legions of troops. For SetDef, a true victory would mean the utter cessation of all planetary resources reaching Earth. They are willing to kill civilians, soldiers, and anyone who gets in their way.



The origins of SetDef lie in the 'gold rush' period of planetary colonization, when colonists first began leaving Earth. The Front was first created as a means of enforcing martial law on off world colonies. Thirty years before the events of Infinite Warfare, SetDef initiated the "Secession Wars", in which they won sovereignty over Mars.

Europa IncidentEdit

18 hours before their attack on Geneva, SetDef launched an attack on a SATO weapons facility on Jupiter's moon, Europa. Although dealt heavy casualties by a SCAR "clean up crew" and losing much of the physical contents of the base, the mission was a success as they were able to eliminate all defenders and retrieved much of the weapons data SATO kept stored on site.

Attack on GenevaEdit

During the annual Fleet Week Parade held in Geneva, the SDF launched their attack. A sleeper-cell agent hijacked Earth's planetary defense system, AATIS, destroying the majority of SATO's fleet in moments. This was in conjunction with a ground assault launched on the city, seeking to take out the world's leaders and other attendees. While the initial attack was repelled after chasing the SetDef fleet into orbit, the Olympus Mons "dropped" into Earths orbit, dealing significant damage to the SATO fleet, resulting in only two ships surviving, the Retribution and Tigris.

SATO and UNSA Counter-Attack Edit

After Geneva incident, Retribution and Tigris are charged to engage and sabotage SDF's military activities to buy Earth more times to rebuild the fleet. Despite high casualty in infrantry regime; the death of Captain Reyes, Captain Farran, Staff Segeant Omar, Private Kashima, Petty Office Ethan as well as others official alongs with the destruction of both Retribution supercarrier and Tirgis destroyer, the mission succeed with the destruction of SDF Mars main shipyard; Olympus Mons supercarrier; at least 6 SDF carriers; multiple SDF Skelters and Destroyers; extensive loss in infantry force and amored vehicles as well as the death of the entire SDF commanding official.

As the result, the SDF was crippled and weakened to the point that they have to give up their ambition to conquer the solar system and destroy the Earth government for at least a decade from now.


The influence of SDF rule extends, but is limited to, Mars, Titan, Eris, and several other Jovian moons. Their society is largely authoritarian and social status is based largely on individual citizens' loyalties to the regime. The SDF are also known to have a secret police organization known as Intracore.

SDF society is also heavily influenced by state run propaganda, as the state sponsored propaganda center, the "Veritas", controls much of the spread of information within SDF territories, going so far as to block out any UNSA transmissions to SDF space. Gun ownership is mandatory within SDF territory. The SDF also maintains force labor camps to gather more resources to fight the UNSA.


The SDF is deeply militaristic, requiring all of its citizens to attend 15 years of military service beginning at age 12. The SDF has 900% more soldiers, per capita, than the UNSA and holds a fleet powerful enough to challenge it. In terms of technology, the SDF is at, if not greater than, the technological level of SATO's military.

The SDF is not above using unconventional warfare and committing war crimes, however, as back pirates who attack UNSA carriers with resources bound for Earth and their attack on Geneva and the Luna Gateway Port left thousands of civilians dead. They also possess some weapons of mass destruction, as a SCAR team discovered on the SDF carrier Hellas located in Venus' orbit.

The SDF military uses many ranks from the Russian Navy, suggesting their influence. Many high-ranking officers, such as Salen Kotch himself, are of very young age, suggesting that promotions are much faster in the SDF military.

SDF is a decidedly male-dominated society. Women are not represented in high levels in the military, only support. They see races as equal, as long as their allegiance is to SDF.


Leaders Edit

  • SDF High Council
  • SDF High Command

8th Orbital FleetEdit

Battle ForceEdit

Scouting Force Edit

Air Combat CommandEdit

Outer Planet SquadronEdit

Belt Squadron Edit

Surveillance and Engagement Edit


  • When designing the Settlement Defense Front, Infinity Ward took inspiration from Soviet and British designs from the 1960s. They're a "functional first" aesthetic in terms of their design.
  • After an update on the Nuk3town multiplayer map the Olympus Mons can be seen flying by in the cut scene a logo of the Settlement Defense Front after the "NUK3TOWN OFFLINE" message appears and Caleb Thies would read his quote out loud. This was changed back to original end cut scene following the reveal of Call of Duty: Infinite Warfare.

Also on Fandom

Random Wiki