OSLO (Reuters) -Britain plans to increase its military presence in the Arctic, defence minister Ben Wallace said on Tuesday, amid increased concerns among NATO allies about Russia following its invasion of Ukraine. Britain would commit militarily “to deeper integration, interoperability with countries such as Norway” to protect the seas of the North Atlantic, Wallace told a news conference in Bardufoss, northern Norway. “We are going to effectively, permanently, have a … Marine strike group permanently … active in the Nordics,” he said, adding the force would likely rotate between Norway, …