u. k, which begins on friday. it's expected to focus on corona, virus, vaccine, distribution, trade and climate change. speaking to us troops in the u. k. mr biden described his mission in the days ahead. there's my 1st overseas trip. as president space met into the g 7 then to the nato minister, and then to meet with mr. to let him know what i want him to know. at every point along the way, we're going to make it clear that united states is that democracies of the world are standing together to tackle the toughest challenges and the issues that matter most to our future. let's get more from w correspondent, county that more in washington. welcome, karen, lena. we had us present a job by assessing a touch tone for his coming talks and start with a meeting with the russian president. tell us more about what's jude, what they're due to discuss. while feel, this is going to be earlier critical meeting and diplomatic challenge for president bite and national security advisor. take a tell, yvonne said this week that they don't regard a meeting with president putin as a reward by the as a vital part of defending america's interests. and america's valu