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Oil prices will jump to $300 a barrel if the West abandons Russian oil, the country’s Deputy Prime Minister and former energy minister Alexander Novak said on Monday, adding that “some see it possibly reaching $500 a barrel.”

The deployment is a sign of unprecedented military cooperation, Washington’s ambassador has said Poland’s security is guaranteed by more than 10,000 US troops stationed on its territory, Mark Brzezinski, Washington’s ambassador to Warsaw, has said, adding that joint efforts to support Ukraine have strengthened the countries’ ties.