If what you say were true, the average deficit under Bush, with the Republican controlled Congress he had for the first six years of his term, would have been more than $250 billion. Instead, it was around $250 billion.
Are you saying that the extra military spending and Bush tax cuts somehow kept the deficit lower than it would have been otherwise? I find this hard to believe. What are your sources/reasoning for this?
Obama's average deficit is around $1250 billion. So it's not the wars. It's not the tax cuts. You are full of shit.
To be sure Obama (and Congress during his term) has been very fiscally irresponsible. He extended the tax cuts (after promising to veto them), and has continued the high military spending. I believe most of the increase in deficit under Obama was caused by the bailout/stimulus.