The Peace By Force Conspiracy

The main character of the story is an industrialist whose outlook had been affected by the death of his wife to an Islamic Terrorist's bomb, and the assault and attempted rape of his housekeeper by a gang of thugs, in addition to other items always appearing in the news.
He befriends and helps a group of aliens who have discovered by means of their powerful sensors, deposits of a mineral on his property which is essential to preserve their life forms. In gratitude for this they leave him with one their heavily armed spaceships when they learn that his attitude to evil is the same as theirs, with their blessing to use it in an attempt to eradicate evil from the world by whatever means necessary.
The story is about the adventures of him and his dedicated team, a little love interest on the way, concluding with the realisation that it was all a big dream during a coma brought on by an accidental injury, with a little romantic interest right at the end.