The foreign ministers of the Group of Seven major developed countries on Saturday warned further aggression against Ukraine would cause Russia to incur "severe and unprecedented costs."Calling Russia's "unprovoked and unjustified" massive military deployment a "challenge to global security and the international order," the G-7 ministers said in a statement released after their talks in Munich that Moscow should choose diplomacy and de-escalate tensions by implementing the announced reduction of military activities along Ukraine's borders."Russia should be in no doubt that any further milita…READ FULL ARTICLE