Sorry, politics again.
General Soleimani had travelled to Iraq on a diplomatic passport at the invitation of the Iraqi Prime Minister to continue a de-escelation talks with the Saudis. He was not there to target the US at all. It was a political assassination inside a country allied to the US. [link]
His martyrdom has activated the entire "axis of resistance". They do not follow orders from Iran & Iran does not ask anything from them [link]. Even neutral actors like the Mahdi Army have reactivated to resist US presence [link].
2015 interview with Muqtada al-Sadr (Mahdi Army leader) who gained the most votes in Iraq parliamentary elections last year...al-Sadr is an Iraqi nationalist, against both Iran and the US influence in Iraq. Listen to what he has to say about the games the US plays in the region: