The big story continues to be the escalation of geopolitical tensions in west Asia after a US airstrike killed Iran's top military commander. CNBC's Hadley Gamble has the latest updates.

Over the weekend, the US Secretary of state Mike Pompeo said that they would have been probably negligent had they not taken this action that is the assassination of Qasem Soleimani. Hundreds of thousands of protesters in Iran, Iraq came out showing solidarity with Qasem Soleimani and his family following his assassination.

One of the things that is going to be on the minds of most US officials this week will be a move by the house speaker Nancy Pelosi to change and take a vote on the powers that essentially will keep President Trump from being able to take any military action directly with regards to Iran.

The US President tweeted multiple times during the last 24 hours or so, saying that the US has spent USD 2 trillion on military equipment, that they are the biggest and best military by far in the world and threatening Iran with a disproportionate response were they to take any retaliatory measures as promised by the Iranians.

So, the situation is tense, it has implications for Middle East market particularly the Aramco stock, which fell significantly last week at the end of trade there. One has to keenly watch what is going to happen in countries like Syria, Lebanon and Iraq as aftermath of these tensions.

The US ambassador is expected to hear from his counterparts in Iraq today asking about or ordering to expel US troops from that country. Last night the Iraqi parliament passed on the resolution that would see the American troops pushed out of the country and what that means geopolitically for the USA and the region, is a more pressing concern.