Iran can not withdraw from Iraq, Syria and Lebanon. Iran wants to dominate these countries and integrate with them----economic union, free trade zone, freedom of migration, military union. Iran needs to develop nuclear weapons in order to deter Israel and protect Iranian sphere of influence. In order to protect these countries in the future from Turkey and Israel, Iran will deploy nuclear weapons on their soil the same way as US deploys nuclear weapons in Turkey and Germany. This will be check-mate for Israel, Turkey and USA in these countries. Iran's plan: 1) consolidate power in Syria and Iraq and open Iranian military bases there with air defenses and ballistic missiles. 2) solve the problems of IR-9 centrifuge by 2023. By 2025 Iran will have a cascade of 22000 IR-9 centrifuges capable of producing one nuclear bomb in few days. 3) test solid fuel ICBM that is being developed in Shahrud by 2022. In 2022-2025 there will be flight tests and by 2026 Iran will deploy 4-6 such ICBMs capable of reaching USA. 4) cross the red line and produce nuclear bomb in 2026 with ICBM capable of flying to USA----this will serve as a deterrence to US. 5) deploy nuclear weapons on Iranian military bases in Iraq and Syria in order to deter and paralyze Turkey and Israel. 6) Once influence in Syria and Iraq is consolidated and Iranian nuclear capabilities there deter and paralyze Turkey and Israel--next step is to knock down Saudi Arabia---Houthis will attack from the south while Shias in eastern province will rise in the east. That is how Iran will dominate the Middle East by 2030, by consolidating influence in Iraq, Syria, Lebanon, Yemen + destabilizing Saudi Arabia and paralyzing Turkey and Israel by Iranian nuclear deterrence.