President Biden answered a series of questions about Israel's conflict with Iran during a surprise appearance at Friday's White House briefing. QUESTION: Could you clarify some of your comments yesterday with regard to strikes on Iranian oil facilities?

President Joe Biden sought to discourage Israel from attacking Iran’s oil fields, as the US looks to shape Prime Minister Benjamin Netanyahu’s response to a ballistic-missile barrage and keep the region from descending into all-out war.

Biden's remarks indicate that while the U.S. supports an Israeli military response against Iran, it thinks the retaliation should be measured.