Defcon Everybody Dies

You play the role of a military Commander hidden deep within an Underground bunker. Your mission - to successfully exterminate your enemy's civilian population whilst disabling their ability to attack your own. Start by launching your battleships, subs and bombers in order to decimate your opponent's defences. Scramble together your alliances but remember only one can stand victorious.
Prepare your pre-emptive strike before one of your supposed allies gets the same idea. Choose the perfect moment for betrayal, obliterating your opponents with an apocalyptic thermonuclear barrage, but get it wrong and their devastating counter attack will bring you to your knees!
It's Global Thermonuclear War, and nobody wins. But maybe - just maybe - you can lose the least.
Position naval fleets including battleships and aircraft carriers to protect your coastline
Bombard the enemy with nuclear warheads from offshore submarines
Deploy ground radar, fighters and bombers to scout and eliminate enemy aircraft
Nuke Silos are at the ready to level complete cities from long range
Strategically time and coordinate defensive maneuvers