David Lammy: Ukraine missile request under discussion BBC.comPutin’s options for Ukraine missiles response include nuclear test, experts say ReutersPutin says NATO will be “in the war” if U.S. or allies let Ukraine fire long-range missiles at Russia CBS NewsRead Putin’s Warning to NATO on Ukraine’s Use of Long-Range Weapons The New York TimesRussia threatens Ukraine, West as long-range strikes decision looms USA TODAY