In the second game of this popular series, the four warring countries from the original game find themselves uniting against a common foe who, at the game's opening, has almost completely overrun the planet.
With the help of carefully devised strategies, a little bit of luck manipulation, and moving the cursor at inhuman speed, the author repels this planetary invasion over the course of slightly more than an hour.
Reading the author's comments is strongly recommended to help keep track of what's going on.