Obama condemns Russian 'dark tactics' and 'aggression' in Ukrain US President Barack Obama on Wednesday condemned the "dark tactics" and "aggression" of Russia in Ukraine after meeting Kiev's president-elect Petro Poroshenko and promising him years of US support. "We will not accept Russia's occupation of Crimea or its violations of Ukraine's sovereignty," Obama said, just over an hour after meeting Poroshenko in Warsaw, ahead of his own expected encounter with President Vladimir Putin in France on Friday. Images and soundbites