Invading Another Country doesn't fit into categories of the kind implied by the question.
Conservative Action Movement was created in 1996.
National Conservative Action was created in 1956.
The agressor.
Invading means to send your military into the other country. You would then occupy that country by keeping your military there after you defeated it. If you move your people into that country with the intention on staying permanently, you would be colonizing it.
Japan
Army of Jericho.
Scotland isn't being invaded.
The actions of the Muslims was to fight against the invading Crusaders.
The Conservative Political Action Conference is an event attended by conservative activists. It is hosted annually by the American Conservative Union, which is a Republican organization that advocates conservative policies.
It is the Conservative Political Action Committee.
Very conservative, but has some left wing policies.
Apart form the fact that you have not said where they are invading, the best way is not to import them into a country where they are not indigenous in the first place.