Thursday marks the 23rd anniversary of the start of the 1999 NATO bombardment of Yugoslavia. In 78 days, NATO jets conducted 2,300 sorties, dropping 420,000 missiles and bombs, including cluster munitions and depleted uranium rounds. Up to 5,700 people were killed, with tens of thousands more diagnosed with cancers in the years that followed. Before entering the Oval Office as Barack Obama’s vice president and then as president himself, Joe Biden served as a United States senator for over 30 years. Ahead of, during and after the NATO bombing of Yugoslavia in 1999, Biden was consistently one of the top...