Biden pays tribute to fallen US troops on Memorial Day.

President Joe Biden honored the sacrifice of generations of US troops who fought for their country and called on Americans to ensure their "sacrifice was not in vain" in Memorial Day observances at Arlington National Cemetery. Biden was joined by first lady Jill Biden, Vice President Kamala Harris, and Harris' husband, Douglas Emhoff, for the 155th National Memorial Day Observance. Biden connected the sacrifices of some 400,000 Americans buried at Arlington to the work of US troops deployed around the world today, saying the impact of the fallen men and women "goes far beyond those silent stones" of the solemn burial ground.