World leaders are directing US$50 billion worth of interest from frozen Russian assets towards Ukraine.   The funding was announced at today's G7 summit in Italy as a signal to Russia it cannot win the war by depleting Ukraine's resources.   US President Joe Biden and Ukrainian President Volodymyr Zelenskyy also announced a bilateral security agreement.   Zelenskyy's outlined the details of the agreement, noting it includes a long-requested shipments of F16 fighter jets.   He says it clearly states the US supports Ukraine's efforts to win the war.  LISTEN ABOVE  See omnystudio.com/listener for privacy information.