To be sure, analysts doubt that France would risk an international crisis by pulling the plug on a long-awaited deal. But it has certainly positioned itself as the Western country pushing hardest to satisfy the concerns of Iran's regional antagonists, Israel and the Gulf Arab nations, which oppose a deal that leaves Tehran in possession of the nuclear infrastructure that could, in theory, allow it to build a bomb. (To do so, it would have to break out of an international agreement and circumvent the stringent monitoring regime currently in place.)