STORY: Soldiers from the U.S. Army's 82nd Airborne Division are stationed in the area of Rzeszow airport as part of NATO's protection of the alliance's eastern flank. The president shared pizza, chatted, and took selfies with several military personnel.Biden is in Poland to get a firsthand look at international efforts to help some of the millions of Ukrainian refugees fleeing war in their country, and speak to American troops bolstering NATO's eastern flank.