The budgetary cuts will impact the train-end-equip program for the Syrian rebels that the United States has put in place in order to combat the Islamic State terrorist group.
In 2014, the US Congress approved $531 million to train and equip about 5,400 Syrian rebels by the end of 2015. However, the Department of Defense admitted it had only trained about 60 fighters and had lost contact with a vast majority of them.
Under the new budget, the program will be reduced to $406 million, according to media reports.
Last week, the White House and Congress reached an agreement to pass a comprehensive 2016 budget, which fell $5 billion short of what the Congress had authorized for defense spending.
Prior to reaching the agreement, President Barack Obama vetoed the $612 billion defense spending bill.
On Monday, Congress finalized an additional $5 billion in defense spending cuts to meet the requirements of the budget agreement.
