(Reuters) -Russian authorities must consolidate the Russian language and identity in parts of Ukraine incorporated into the country since Moscow's 2022 invasion, according to a document signed by President Vladimir Putin and published on Tuesday. The document, entitled "Strategy of Russia's national policy in the period to 2036", appeared as a decree signed by the president. It calls for measures to ensure that 95 percent of the country's population identify as Russian by 2036. Long links between Russia and Ukraine, from even before the Soviet era, mean that some Ukrainians have traditionally been sympathetic to Russia and most speak both...