The Pentagon agency charged with shepherding US arms sales to foreign nations had a high of $46.6 billion in sales in fiscal 2015, up from an average of $40 billion annually in recent years, its chief said Tuesday.

Vice Adm. Joseph Rixey, Defense Security Cooperation Agency director, said the spike is linked to the war against the Islamic State, though sales typically have an inverse relationship to OPEC oil prices.

Outside of a spike in 2012 due to F-15 fighter jet sales to Saudi Arabia, 2015 is the biggest yet for foreign military sales, Rixey said. DSCA processed $34.2 billion in sales in 2014, and $27.8 in 2013, Rixey said. […]