A lot of military spending is disguised (not to say maliciously) as funding to other agencies. For example, that number is probably just the Pentagon's budget,

A lot of military spending is disguised (not to say maliciously) as funding to other agencies. For example, that number is probably just the Pentagon's budget, and wouldn't include things like Veterans Affairs (which is about $300 billion) or foreign aid (around $50 billion) or the Department of Homeland Security (around $50 billion) or our nuclear force ($35 billion), etc. Even some of NASA's funding is for monitoring nukes. The point is that it's actually kind of hard to calculate how much we spend on defense, because it's hard to know what to count, but it's certainly more than it looks like. Over $1 trillion is a safe guess.