MOSCOW — President Vladimir Putin on Monday sanctioned the delivery of a highly capable Russian air defense missile system to Iran, a game changer move that would significantly bolster the Islamic republic’s military capability and fuel Israel’s concerns.

U.S. Secretary of State John Kerry objected to Moscow’s decision in a phone call to Russian Foreign Minister Sergey Lavrov, and the White House indicated the move could endanger plans to ultimately lift sanctions on Iran as part of a proposed nuclear deal.

White House press secretary Josh Earnest said unity and coordination with nations like Russia is critical to the success of the negotiations. Washington has said Moscow played a constructive role in the Iranian nuclear talks, despite sharp differences between Russia and the West over Ukraine.

Putin’s move was quickly welcomed by Tehran, while it worried Israel, which saw it as a sign that Iran already had begun to cash in on the emerging nuclear deal with world powers that is expected to be finalized by the end of June.

Putin’s spokesman, Dmitry Peskov, said the missile system could be shipped to Iran at any moment.

Russia signed the $800 million contract to sell Iran the S-300 missile system in 2007, but suspended their delivery three years later because of strong objections from the United States and Israel. Putin on Monday lifted that ban.

The preliminary agreement on settling the Iranian nuclear standoff struck earlier this month made the 2010 Russian ban unnecessary, Lavrov said in a televised statement.

The framework agreement reached by Iran and six world powers is intended to significantly restrict its ability to produce nuclear weapons while giving it relief from international sanctions. The agreement is supposed to be finalized by June 30, and there is no firm agreement yet on how or when to lift the international sanctions on Iran.

The S-300 missile system, which has a range of up to 200 kilometers (125 miles) and the capability to track down and strike multiple targets simultaneously, is one of the most potent air defense weapons in the world.