The United States on Saturday condemned the attacks by "Hamas terrorists" against Israel and vowed to ensure the key US ally has the means to defend itself. President Joe Biden described the assault as "a terrible tragedy on a human level" and said he had spoken to Israeli Prime Minister Benjamin Netanyahu to underline his support. "I told him the United States stands with the people of Israel in the face of these terrorist assaults," Joe Biden said in a televised address from the White House.