The heat is on Turkey to cool it with Iran. Chairman of the Joint Chiefs Admiral Mike Mullen has told Turkey it must join the international coalition seeking to contain Iran. Speaking in Ankara over the weekend Mullen said "The mutual goal of Iran not achieving a nuclear-weapons capability, that we completely agree on, we just need to reinforce. "
 
Turkey is also under significant economic pressure from the US - a  Treasury delegation was in Ankara two weeks ago,  warning key banks and private companies not to do business with Iran.

President Obama has personally warned Turkish Premier Tayyip Erdogan in that Turkey would forfeit a major arms deal (to purchase drone aircraft)  - if it did not cool its relationship with Iran and reconsider a controversial fuel swap deal brokered with Iran in May.

In May, Turkey and  Brazil, voted against a UN sanctions resolution on Iran and brokered an independent deal with Tehran whereby Turkey would receive unprocessed uranium from Iran, and send back smaller amounts of enriched uranium for use in a medical reactor.