Both the Soviet Union and China denounced the bombing , while some Western countries also criticized the US operation . In a famous speech , Olof Palme , the Prime Minister of Sweden , compared the bombings to a number of historical " crimes " including the bombing of Guernica , the massacres of Oradour-sur-glane , Babi Yar , Katyn , Lidice and Sharpeville , and the extermination of Jews and other groups at Treblinka , and said that " now another name can be added to this list : Hanoi , Christmas 1972 " . In response to his protests , the U.S. withdrew their ambassador from Sweden and told Stockholm not to send a new ambassador to Washington
Sharpeville
Sharpeville massacre
Operation Linebacker II