The virtual, closed-door meeting of G7 leaders -- Britain, Canada, France, Germany, Italy, Japan and the United States -- was set to start at 9:00 am (1400 GMT), with Biden's White House speech scheduled for early afternoon. For weeks, as Russia built up tens of thousands of troops and heavy weapons on Ukraine's border, Biden has led NATO and other European allies in trying to craft a package of what Washington says are "unprecedented" sanctions as a deterrent.
