The Tower Defense community faces a dire situation as the earth is being invaded by hostile aliens. In a united effort to save the planet, the United Kingdom has recognized your exceptional potential as a commander to lead their army against this extraterrestrial threat. You will work alongside other nations such as Poland, Russia, Japan, and more to form a formidable alliance against the invaders. Your role as a commander is crucial in leading the charge and ensuring the safety of the entire planet. Together, you will undertake the daunting task of protecting the earth from this imminent danger.