Editor
President Biden on Saturday signed a new $40 billion package of military and humanitarian aid for Ukraine as the country braced for a drawn-out war of attrition in its eastern regions, vowing that it would not stop fighting until all Russian forces were expelled.
Yet on Saturday, President Volodymyr Zelensky of Ukraine acknowledged that ultimately the conflict would require a diplomatic solution, raising questions about exactly what that would mean.
Mr. Zelensky said that Russia had thwarted…
