Creating space capable, enormously large cruisers as planetary enforcement. Also for possible space colonization.

Such as in video games, like Halo, and Star Wars, we should have a space capable fleet able to colonize planets and protect the Earth, and her colonies. We would also be ready to go to war with an alien species if the were found, instead of being unprepared like we would be now. Many would think this idea idiotic, but it would create billions of jobs, a new age of travel, and the ability to unpopulize earth if it was needed. This would increase defence, weapondry, and jobs that would Last forever, or until it wasn't existent. I would recommend, as simply a nerdy form of opinion they look like the fleets from Halo, considering the damage they did, and the decent coolness they have, just my nerdiness talking. In all seriousness, I think you should look into this, so our nation would be ready