内容摘要：On meeting the star at a US book-signing in 2016, he urged him to consider playing in his home city of Liverpool. He also encouraged Springsteen's E Street Band guitarist Stevie Van Zandt at two meetings, with the latter having since performed at the city's Cavern Club.

On meeting the star at a US book-signing in 2016, he urged him to consider playing in his home city of Liverpool. He also encouraged Springsteen's E Street Band guitarist Stevie Van Zandt at two meetings, with the latter having since performed at the city's Cavern Club.

Moscow currently controls about 20% of Ukrainian territory, including the southern Crimea peninsula annexed in 2014.SBU sources earlier told BBC News Sunday's attack involved drones hidden in wooden mobile cabins, with remotely operated roofs on trucks, brought near the airbases and then fired "at the right time".

In several posts on social media late on Sunday, Zelensky said he congratulated SBU head Vasyl Maliuk with the "absolutely brilliant result" of the operation.He said that each of the 117 drones launched had its own pilot."The most interesting thing - and we can already say this publicly - is that the 'office' of our operation on Russian territory was located right next to the FSB of Russia in one of their regions," the Ukrainian president said.

The FSB is Russia's powerful state security service.Zelensky also said that all the people involved in the operation had been safely "led away" from Russia before the strikes.

The SBU estimated the damage to Russia's strategic aviation was worth about $7bn (£5bn), promising to unveil more details soon.

The Ukrainian claims have not been independently verified.Members of the Western alliance Nato need to prepare for a possible attack from Russia within the next four years, according to Germany's chief of defence.

General Carsten Breuer told the BBC that Russia was producing hundreds of tanks a year, many of which could be used for an attack on Nato Baltic state members by 2029 or even earlier.He also insisted that Nato, the North Atlantic Treaty Organization, remains unified over the war in Ukraine, despite differences of opinion expressed recently by both Hungary and Slovakia.

Gen Breuer was speaking on the sidelines of the Shangri-la Dialogue, a defence summit in Singapore organised by the think tank International Institute of Strategic Studies.His comments come weeks ahead of a summit of Nato nations at The Hague where they are expected to discuss defence budgets, among other topics.