Iran Offered to Cut Off Hezbollah in Overture to US in 2003: BBC

According to the BBC, Iran sent the US a letter after the invasion of Iraq to cut off its support of Hezbollah and Hamas, as well as show transparency with its nuclear program. Iran asked in return for an end of its hostile behavior towards them, the cessation of sanctions, and the repatriation and prosecution of a terrorist Iranian opposition group based in Iraq called Mujahedeen Khalq (People's Mujahideen).

The State Department responded favorably to the letter, which was unsigned but believed to have the support of the highest authorities in Iran. When the letter was sent to the VP Dick Cheney's office; the letter was sent out and rejected According to Lawrence Wilkerson, who was chief of staff to Colin Powell.