WASHINGTON (AP) -- President Barack Obama says he's surprised that Russia's suspension of missile sales to Iran "held this long."


The White HOUSE objected earlier this week when Russia announced it would lift a five-year ban on delivery of anti-aircraft missiles. They would give the Islamic republic's military a strong deterrent against any air attack.


Moscow says a preliminary agreement over Iran's nuclear program made a 2010 ban on sending missiles to Iran no longer necessary.


Obama also says he'll sign legislation expected to pass the Senate and House giving Congress a say on a final deal. He called it a "reasonable compromise."


The legislation would block Obama from waiving congressional sanctions against Iran for at least 30 days after any final agreement. That would give lawmakers time to weigh in.


By The Associated Press