Tower defense: Defense zone

Fight against many opponents in the defense zone. Explanation: build turrets and defense towers to destroy enemies. In this game, lead wars against aliens and fight against robot invaders. It's important to build a line of defense to stop the enemy. Clarify: build turrets with different weapons. The key points of the map are placed in the quotes. Combine turrets and rocket guns to destroy enemies. Ask for aviation support in critical situations.