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The United States is considering moving some of its Patriot missile systems from Israel to Ukraine to help shore up its air defences against Russia, it has been claimed.
The US alleges that a 22-year-old Russian hacker used 'WhisperGate' malware to try to obliterate the Ukrainian government's computers, and, later, conducted cyberattacks against the US as well.
Russia's defense ministry warned that American drone flights over the vital waterway was bringing NATO on course for a standoff with Moscow.
The United States is by far the largest individual supporter of Ukraine but Washington's continued backing faces an uncertain future.
Moscow's defense minister has ordered the Russian army to develop measures to deal with what the ministry called "provocations" from U.S. strategic drones operating over the Black Sea, saying they are increasing the risk of a "direct confrontation" between Russia and NATO.
Liubomyr Romankiv, a Ukrainian inventor, scientist, philanthropist and member of the Plast National Scout Organisation of Ukraine, the largest Scouting organisation in Ukraine, died at the age of 93 in the US on the night of 27-28 June.