UK’s top diplomat also pledges £3 billion of annual military help to Ukraine for ‘as long as it takes.’

Ukraine has the “right” to use British-supplied weapons to strike Russia inside its own territory, U.K. Foreign Secretary David Cameron said on a trip to Kyiv.

In an interview with Reuters, Cameron said it was up to Ukraine to decide how U.K. weapons are used.

Asked if that included targets inside Russia, he said: “Ukraine has that right. Just as Russia is striking inside Ukraine, you can quite understand why Ukraine feels the need to make sure it’s defending itself.”