Red Alert: Invincible Warship

Perhaps Technical Facilitation ways of different alliances' armies, the alliance's army may penetrate through the "Command Center" and continue to facilitate all "Construction Yards", which may facilitate all basic defenses of the "Command Center". Purchase an "Advanced License" in "Allied Forces" or "Command Center" to further promote military production within its construction range (facilities and their productions), thus allowing all armies to gain promotion.