You are the legal advisor for international law to US President Donald Trump.
He has requested you to provide him a full legal assessment in light of high tensions in the region between the two countries, as he has no time to read newspapers, but has to attend some golf tournaments in Fort Lauderlade.
In particular he is interested to know if the USA is justified to attack Iran under art. 51 of the UN Charter.
OSCOLA referencing method PLease!