If you are truly worried about the budget deficit, which is an idiotic thing to actually be worried about at a time of incredibly low government borrowing rates and high unemployment, the place to start would be looking at the basic outline of the federal budget. From the Center on Budget and Policy Priorities:
As you can see, our Federal budget is mostly military spending, public health care spending, and Social Security. If you really want to reduce the deficit your options are raise taxes or cut from those three. Since our tax rate is low by international and historic standard, it could be easily raise tax revenue by a modest amount.
When it comes to cuts, though, any legitimate cost benefit, efficiency or needs analysis would say radically cut the military spending is the most logical move.
The simple fact is that the United State is a nuclear power. We are a mostly geographically isolated country. We only share a border with two smaller and weaker allies. Finally, we have a well-armed and fiercely nationalist population that makes a theoretical foreign occupations a bloody nightmare.
Even if we eliminate all military spending except for the national guard, there would still be zero chance the USA would be invaded or attacked by another nation state. Achieving what should be the only real goal of our military can be done for probably about 1/40th our current spending.
Instead, we spend dramatically more than the next 10 largest militaries combined. If we decided to cap our military spending at merely twice the amount as the next largest military, we could remain by far the world’s most powerful military force and that would still cut our military spending to about third its current size. This would massively reduce overall federal spending.
There is simply no logical justification for the absurd amount we spend on “defense.” The idea regular Americans need to be part of a “shared sacrifice” to reduce the deficit is beyond absurd when we waste so much on defending ourselves from non-existent threats.