Russia and Ukraine again exchanged a series of major overnight drone strikes as the two sides maneuvered ahead of a possible resumption of ceasefire talks later this week.Renewed talks -- if they do happen -- would take place as both Kyiv and Moscow near new records for the scale and intensity of cross-border strikes,

Russian air defense units intercepted 13 drones flying towards Moscow in under two hours, Mayor Sergey Sobyanin reported at around 1:46 a.m. local time on July 19.