that it had never happened. - this is going to be a testing time. president biden's, the american withdrawal from afghanistan - and we understood why it had i to happen and for the troops had to come after 20 years, _ the rest of the nato forces but how it was done and how it resulted in eight caliban take over, - in a taliban take over, a reversal of what had happened 20 years earlier which cost the us - to go in and the first place, has raised questions - about american commitment. we will have more thanl 100,000 russian troops massing along ukraine. you have sabre rattling - between china and taiwan. so there is a lot of unfinished - business and american credibility is going to be put on the spotjust when joe biden wants _ to focus on build back - better at home, the impact of the coronavirus, i political challenges. and so these are issues - which are not going to go away and in fact quite the opposite. they may actually raise their head.