Although not specific to Middle East politics: cutting all diplomatic ties with a country, closing all the land/sea/air borders with it, banning travel to it, a

Although not specific to Middle East politics: cutting all diplomatic ties with a country, closing all the land/sea/air borders with it, banning travel to it, and expelling all its citizens, not just the diplomats... This all sounds like a precursor to war. And then add to that the accusation of "supporting terrorism", a claim that is nowadays used as a pretext to justify military action. Seems like a fairly big deal.