NATO warns over Russian military build-up in Crimea
NATO's top military commander said he was "very concerned" that Russia's military build-up in the annexed Crimean region could be used as a launchpad for attacks.
Ukraine 'ready for total war' says PoroshenkoUkrainian President Petro Poroshenko claimed his country was "prepared for total war" as fighting continued around the rebel stronghold of Donetsk.
US not confirming Russian incursion in UkraineThe United States said it could not confirm reports of a new Russian military incursion in eastern Ukraine despite charges to that effect by the Kiev government.