Sanctions are not going to change Iran's posture. The JCPOA was working, as verified by the IAEA since it was signed, and yet the Trump administration, in yet another foolish act, withdrew from it. The illegal Soleimani assassination only united the rest of the world (including everyone in Iran) against the US. Killing Soleimani was equivalent to killing Esper. The United Nations should have stepped in and condemned the US for it.