A third night of drone attacks near Moscow has snarled airports as foreign leaders start arriving for Russia’s Victory Day celebrations.

Ukraine and Russia stepped up strikes ahead of Moscow’s World War II commemorations on Thursday, with Russia closing more than a dozen airports and canceling scores of flights amid a wave of drone attacks.

For Yuriy Savchuk, the director of Ukraine's War Museum, Russia's invasion has stark parallels with the fight for survival his country waged during World War II. As both Russia and Ukraine gear up to mark 80 years since they defeated Nazi Germany -- fighting side-by-side as part of the Soviet Union -- the divide over that shared legacy has deepened amid the current conflict,