MOSCOW (Sputnik) — The unity of the European Union is important for the cohesion in its collaboration with NATO, he added, stressing that the collaboration is key in the matters of dangers coming from the alliance's southern and eastern flanks.
"The question of the so-called Brexit is, of course, a decision for the British people. As [US] President [Barack] Obama has said, the United States supports the United Kingdom remaining in the European Union. And I would just note that there is a strategic reason for that," Carter said.
UK nationals are set to vote on June 23 in a referendum on the country's EU membership, after Prime Minister David Cameron and the leaders of the 27 EU member states agreed in February to grant the United Kingdom a special status within the bloc.