The Spacecraft War. Invasion

The long-awaited meeting with other civilizations turned to humanity is not so, as humans was calculated . The aliens were not guests, they were invaders who tried to colonize the planet. Mankind had no other choice but to enter the conflict . The war was not long in coming. Aliens , realizing that humans will not give up , they decided to break the morale of the enemy and began to bomb civilian towns .
You have to defend the civilian population and to resist alien spacecraft , leading the bombing of the largest cities .