Boroda, war as an economic tool is a poor strategy. Yes, you can see big business development and industrialization and realize short term benefits, but it suffers the same weaknesses that centralized control of production (Soviet style) has. When demand must be artificially created, there's an inherent instability. Keeping that demand at the correct level is almost impossible in a system as complicated as a national economy.
Free enterprise can provide better long term growth. Wartime economy is good for short term growth, but like an energy drink or candy bar, there's a crash when you stop consuming.
This is one of the many reasons the Soviet Union failed, their economy was so heavily invested in specific military and state planned objectives that the heterogeneity that brings strength could never appear. In the US, we had a big military industrial complex too during the cold war, but we also developed lawn darts, toasters, an automotive industry, and all the other "non-essential" things demanded through free enterprise that can never prosper in a planned economy.
The end result was an economy better suited to handling change. Think monoculture.