Israel's leader is preparing for a visit to Washington amidst growing tensions with Iran. Israeli Prime Minister Benjamin Netanyahu stated that Iran's nuclear program will be the top priority on the agenda when he meets with U.S. President Barack Obama on March 5 at the White House. Speaking at the weekly Cabinet meeting in Jerusalem, Netanyahu referenced a report by the International Atomic Energy Agency released on Friday, which showed that Iran has significantly increased uranium enrichment. He said the report is "unequivocal proof" of what Israel has been saying all along: that Iran is moving "quickly and unchecked" toward acquiring nuclear weapons, defying the international community. Iran claims its nuclear program is for peaceful purposes, but Israel and the West believe Iran is developing nuclear weapons. Israel perceives this as a threat to its existence and has threatened to launch a pre-emptive strike on Iran's nuclear facilities if Western diplomacy fails. The United States opposes military action and has sent senior officials to Israel over the past month to urge it to give sanctions on Iran more time. However, Israeli leaders remain unconvinced. Cabinet Minister Yuval Steinitz welcomed the tightening sanctions and said they are starting to have an impact, but he expressed doubt that they will be sufficient to halt Iran's pursuit of the atomic bomb. President Obama is expected to urge Prime Minister Netanyahu not to attack Iran. Nevertheless, Israel is not making any promises. Officials here express gratitude for American military aid and political support, but they emphasize that regarding Israel's security and survival, its decisions are its own.