Enemy tanks are fast approaching, and they do not look friendly! Use your mouse to build up your defenses, and create more tanks and units to defend you base. As you build up your units, you can upgrade them into stronger machines. Embark on dangerous missions and destroy the enemy. You can also, select how when to send your tanks out, and build up specific line ups to best combat each mission. Strategize your units and carefully decide which ones are worth making more of, and which ones are useless. Battle your enemies to the death and be the last army standing.