The first Call of Duty game was released, marking the beginning of the popular military shooter video game franchise.
Release of Call of Duty 4: Modern Warfare, a significant shift in the series to modern warfare settings, greatly influencing the FPS genre.
Launch of Call of Duty: Black Ops, introducing Cold War themes and becoming one of the best-selling games in the series.
Release of Call of Duty: Warzone, a free-to-play battle royale game that significantly expanded the player base.
Activision merged with Blizzard Entertainment, combining two major gaming companies influential in the Call of Duty series' ongoing development and publishing.
The global conflict ignites, marking the beginning of intense military engagements featured in the original Call of Duty campaign.
A pivotal battle on the Eastern Front, where Soviet forces defend the city against the German army, depicted in Call of Duty: World at War.
Allied forces launch Operation Overlord, the massive invasion on Normandy beaches, initiating the liberation of Western Europe.
Allied operatives conduct covert missions to weaken German control in France, as portrayed in Call of Duty 2.
Elite forces undergo initial deployment to combat emerging threats during the Cold War tensions in Call of Duty: Modern Warfare.
Special forces are deployed to contain a nuclear threat originating from the Chernobyl Exclusion Zone, featured in Call of Duty: Modern Warfare 2.
A faction of ultranationalists orchestrates a coup, challenging global stability and prompting intervention by international forces in Call of Duty: Modern Warfare 2.
International special forces conduct a high-risk operation to eliminate key ultransationalist leaders and destabilize their control.
In a last-ditch effort, ultranationalist forces attempt to detonate nuclear weapons, which are thwarted by elite operatives.
Following a series of terrorist attacks, Coalition forces worldwide engage in operations to dismantle terror networks, as shown in Call of Duty: Modern Warfare and Black Ops series.
A covert operation targeting enemy installations during the Cold War era, featured in Call of Duty: Black Ops.
Depicted within the Black Ops storyline, this event is surrounded by conspiracy and covert missions influencing Cold War tensions.
Special forces conduct search and destroy missions in dense jungles against Viet Cong forces as part of Black Ops campaigns.
Coalition forces confront the threat of Nova 6, a deadly chemical weapon weaponized by enemy forces.
Elite operatives intercept and neutralize threats aiming to detonate explosives on satellites threatening global security, in Call of Duty: Black Ops II.
