By Alan Charlish, Lidia Kelly and Barbara Erling WARSAW/WYRYKI-WOLA, Poland (Reuters) - Poland shot down suspected Russian drones in its airspace on Wednesday with the backing of aircraft from its NATO allies,

Ukrainian drones attacked the Russian Black Sea coast overnight into Tuesday morning, according to the Russian Defense Ministry and local officials.

Kyiv says it needs all its drones for the battlefield, but manufacturers insist the foreign revenue from exports would let them expand their production.

Zelenskyy's tally indicates that nearly a fifth of Russia's latest drone wave was downed by interceptors, Kyiv's emerging, cheap air defense.

Russia unleashed its largest-ever air assault on Ukraine early Sunday, sending more than 800 drones and 13 missiles into the country in an hours-long attack that set the main government building in Kyiv ablaze for the first time during the war,

Ninety-one Russian drones struck Ukraine overnight the night after Russian President Vladimir Putin issued a stark warning, declaring that any foreign troops deployed to Ukraine would be targeted.

Ukraine's crowdfunding groups say they've found the winning formula for beating Russia. But they're often overlooked.