JERUSALEM — President Barack Obama’s security adviser said US investment in Israel’s defense shows it is committed to its security.

Susan Rice said Friday that the Obama administration and Israel recently signed an agreement for further US investment in its Iron Dome system.

The Iron Dome defends Israel against short-range rockets fired by militants in Gaza, Sinai and Lebanon. It detects the rockets and strikes them in midair.

Rice said that the new deal “will take our total investment in Iron Dome, which has saved countless of Israeli lives, to nearly $900 million, a sign of our continued commitment to Israel’s security.”

“Every American dollar spent on Israel’s security is an investment in protecting the many interests that our nations share. Whether that’s preventing rockets from terrorizing the Israeli people, defending against the growing ballistic missile threat in the region, or advancing our commitment to defend freedom and democracy,” she went on.

Rice is in the region meeting Israeli and Palestinian leaders. Her visit comes soon after the latest round of US-backed Mideast peace talks ended in failure.

On Thursday, Rice assured Israel at high-level talks on Thursday that Washington remained determined to stop Iran developing nuclear arms, the White House said.