Russia decides to ignore Obama s red line and sells missiles to Iran.  With a weak leader like Obama, it s no wonder Putin thumbs his nose at us Russia s announcement on Monday that it will proceed with the sale of advanced missile systems to Iran crosses a so-called  red line  established by the Obama administration in 2010, according to comments by senior administration officials.Following years of dissent from the United States, Russia announced on Monday that it would proceed with the sale of the advanced S-300 air defense missile system to Iran, which has been vying to purchase the hardware for years.The announcement sparked criticism from the Obama administration, which has been pressuring Iran since at least 2010 to withhold the sale.Russia s previous ban on selling Tehran the powerful defense system was hailed as a coup by the Obama administration and promoted by it as an example of President Obama s ability to rein in Russian intransigence on the military front.However, Monday s announcement by Russia threatens to complicate an already fractured relationship with Moscow and throw into further jeopardy the ongoing negotiations with Tehran over its nuclear program.Experts have warned that the reversal threatens to split the international coalition currently working to halt Iran s nuclear program a narrative that the White House is working to downplayThe Russian executive order effectively  lifts the ban on transit of the S-300 air defense missile systems via Russian Federation territory (including by air), export from the Russian Federation to the Islamic Republic of Iran, and transfer of the S-300 to the Islamic Republic of Iran outside the Russian Federation s territory, using ships or aircraft flying the Russian Federation flag,  according to an announcement by Moscow.Russia s decision to arm Tehran with the S-300 system erodes a long-promoted narrative by the Obama administration about its success in preventing Russian proliferation.Read more: WFB