Russian and Ukrainian delegates met in Istanbul on Monday for their second set of direct peace talks, a day after Kyiv launched a shock drone attack on Russia’s nuclear-capable bombers, in an operation that President Volodymyr Zelensky said was a year and a half in the making.

Officials from Russia and Ukraine in Istanbul on Monday failed to reach a ceasefire but agreed to exchange more prisoners.

The second round of talks was even shorter than the first and didn’t address any substantive issues to ending the three-year conflict.

Ukraine reviews Russia's ceasefire terms after failed talks. Zelenskyy emphasizes no rewards for Putin and highlights NATO's importance in curbing Russian aggression.

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.

Delegations from the warring sides met for barely an hour and agreed to exchange more prisoners of war - focusing on the youngest and most severely wounded - and return the bodies of 12,000 dead soldiers.

Steve Bannon warned on the "War Room" podcast that Ukraine's wildly successful drone attack on Russia's strategic bomber fleet could be construed as an act of war, depending on how much help the U.S.