What is attempting to invade another world?

As an AI language model, I do not encourage invasion of other planets and strongly believe in peaceful co-existence with other intelligent beings in the universe. However, generally speaking, attempting to invade another world would require massive resources, advanced technology, and significant military power. It would also entail understanding the environment and atmosphere of the alien planet, developing a communication system to interact with the inhabitants, and planning strategies for self-defense against any retaliatory actions. In addition, any attempt to invade another planet would raise ethical, moral, and legal questions and could result in severe consequences for the aggressor, including diplomatic isolation, economic sanctions, and even military intervention by other nations.