Senate approves more money for Israel's Iron Dome

Washington (CNN) -- Divided on other issues, U.S. lawmakers united in support of Israel on Friday with the Senate approving another $225 million for the Iron Dome missile defense system.

The House could take up the measure later Friday.

Senate approval came as the chamber wrapped up work before going on its five-week summer recess.

How does Israel's Iron Dome work?

On Thursday night, Republican Sen. Tom Coburn of Oklahoma blocked the Iron Dome funding requested by Defense Secretary Chuck Hagel because it would add add to the budget deficit.

The objection evaporated overnight, with the measure approved swiftly by unanimous consent.

Supporting Israel is a political necessity for many U.S. legislators, especially in a congressional midterm year.

In the current Gaza conflict, Iron Dome has been credited with intercepting Hamas rockets fired from the Palestinian territory at Israel.

The United States helped Israel create the missile defense system, and the additional money for Iron Dome would replenish supplies.

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