Leaders of the G-7 nations met on Friday to discuss new sanctions on Russia for its 15-month invasion of Ukraine. Ukrainian President Volodymyr Zelenskyy is expected to make the case that his nation's survival depends on the support of the U.S. and its allies at the summit on Sunday. The G-7 has already agreed on new steps to make the war more costly for Russia, and the sanctions are expected to be announced at the summit.