The Ivory Coast striker wrote on the club's website to end speculation about his future and indicate his intentions to protect another part of the world.
"It has been a very difficult decision for me to make and I am very proud of what we have achieved, but the time is right for a new challenge for me. As a team we have accomplished so much and have won every single trophy possible.
"Saturday was a very special moment for everyone at the club and for all the fans. I am very proud to have played my part in bringing many trophies to this club, which has been my home for the last eight years.So there you have it boys and girls. We're doomed. If you want to keep London, or indeed the UK, free from attacks by terrorists or giant robots you should probably start building those Drogba scarecrow sets we handed out last year, right now. It's either that or just surrender. Or go to the gym and fighting school to be prepared to fight hoardes of evil creatures. Why does doing good take so much effort? It's why bad guys are always fat, like Shredder (voiced by Uncle Phil of Fresh Prince).