Overseas Contingency Operations: Money spent in 2015 and what to look foward to for the 2016 fiscal year

The Overseas Contingency Operations (OCO) fund - sometimes referred to as war funds - is a separate pot of funding operated by the Department of Defense and the State Department, in addition to their "base" budgets (i.e., their regular peacetime budgets). Originally used to finance the Iraq and Afghanistan wars, the OCO continues to be a source of funding for the Pentagon, with a fraction of the funds going to the State Department.

In FY2015, the U.S. will spent $64 billion through the OCO, in addition to its $496 billion Department of Defense base budget.

For FY2016, lawmakers are still hashing out the details, but the House and Senate have approved a budget resolution that would fund the Pentagon with $90 billion through the OCO, with a DoD base budget of $499 billion. This is about $38 billion more than the Pentagon itself requested.

More on the FY2016 spending, countries and companies.