In recent months, the Obama administration has granted Israel financial aid to help it purchase more batteries for the Iron Dome missile system.
The US Congress also approved an aid package of about $1 billion to improve the Israeli missile systems.
This comes as the US government has been forced to make major cuts in its own military spending on account of its dire financial situation.
The contribution to the Israeli missile system, sourced from US taxpayer money, is in addition to the approximately $3 billion, which Washington grants Tel Aviv annually.
Israel is the top recipient of US military aid.
US Undersecretary of Defense for Policy James Miller and top Israeli Defense Ministry officials, including director-general Udi Shani and the head of the Diplomatic-Security Bureau, Amos Gilad, attended the meeting.