Don't bomb it, buy it.
What do aggressors in wars want? The short answer is to occupy, to own and to subjugate. One most disadvantageous side effect of war is that it tends to destroy much of what one side wants to conquer, and what the other wants to retain.
Surely a better way to grow an aspiring conqueror's empire is through acquisition rather than fighting? It takes longer, but the target remains intact.
For example, the americans bought Alaska from Russia in 1867 for $7.2 million - about $145 million in 2023 dollars. Compare that with the $750 billion spent on bombing the crap out of Iraq.
While countries or territories are rarely up for sale, they are not generally what is valued. That would be the things on the land, or under it (resources). And those can be bought for much cheaper than the cost of even a small war.