Ukrainian forces have destroyed dozens of Russian warplanes parked at airfields thousands of miles from the front lines, according to a source in the country’s security services, in one of Kyiv’s most audacious and sophisticated counter assaults since the beginning of the war.

Russia and Ukraine will resume direct peace talks in Istanbul a day after Ukraine staged one of its boldest aerial attacks inside Russia, which destroyed long-range bombers and other aircraft.

Asian shares have fallen and oil prices jumped as trade tensions and the Russian-Ukraine conflict ratcheted up geopolitical uncertainty.

With 41 military aircraft impacted, the Ukrainian drone attack was described by some commentators as Russia's "Pearl Harbor." The attack on Pearl Harbor in December 1941 was a surprise air raid by Japan on the U.S. during World War II. Kyiv's assault follows ground advances by Moscow troops in recent days in Ukraine's Sumy border region.

Russian President Vladimir Putin signed a decree that forces Ukrainians to legalize their status in occupied territories — or leave. Already, many Ukrainians had been forced to accept Russian citizenship in occupied areas to maintain their homes or access to health care and education.

Ukrainian President Volodymyr Zelenskyy on Sunday praised Ukraine's Security Service for "brilliant operation" aimed at "military targets" on Russian territory.