Ukraine touts itself as having world-class drone defence capabilities, built up through fending off nightly barrages of Iran-style attack drones launched by Russia, an ally of Tehran.

"As of now, there are 11 requests from countries neighbouring Iran, European states, and the US. There is clear interest in Ukraine's experience in protecting lives, relevant interceptors, electronic warfare systems, and training," Zelensky said.

He did not specify which countries.

Some drone experts are already en route to the Middle East and are due there this week, Zelensky said over the weekend.

The Ukrainian leader has proposed swapping Kyiv's drone interceptors -- drones designed to intercept incoming attack craft mid-air -- for expensive air defence missiles that Kyiv is in short supply of.

According to Ukraine air force data, the military has been consistently intercepting or shooting down more than 80 percent of all incoming Russian drones -- hundreds of which are fired every night.

Kyiv uses a mix of cheap drone interceptors, electronic jamming tools, anti-aircraft guns, fighter jets and helicopters to defend its skies from the Russian attacks.