London CNN  —  2025 has not been kind to Europe so far. The risk of war on the continent has been declared the highest it’s ever been, while data has shown the mighty US economy pulling even further ahead of its European counterpart. As a rapid rise in military spending across Europe looks increasingly likely, could it also give the region’s economy a much-needed shot in the arm, making Europeans both safer and richer? That depends on where the money comes from — taxes or borrowing — and how