By Tommy Wilkes, John McCrank and Huw Jones LONDON/NEW YORK (Reuters) – The United States, Britain and European Union leaders are targeting Russian banks as part of a new package of sanctions following Moscow’s invasion of Ukraine. Here is a rundown of how sanctions which have already been announced impact banks and investors: WHAT HAS BEEN ANNOUNCED SO FAR? The U.S. Treasury Department said it was targeting the “core infrastructure” of Russia’s financial system, sanctioning two of its largest banks – state-backed Sberbank and VTB. Also on the sanctions list are Otkritie, Sovcombank and Noviko…