With the deployment of Update 4.5 on June 26, the Mercenaries will rise. World of Tanks: Mercenaries plunges the game into a radical new reality, where history has changed and rules mean nothing. Endless wars have left the world fractured, and in the vacuum of power left by the destabilisation of global powers, soldiers and civilians are now fighting for themselves.
Source: N4G PC World of Tanks Mercenaries Screenshots and Trailer