By Nick Carey LONDON (Reuters) – Mercedes-Benz has 2 billion euros ($2.2 billion) in assets that could be threatened by Russian proposals to nationalise the property of foreign firms that leave because of its invasion of Ukraine, the German premium carmaker said. The company said in its annual report released on Friday that the war in Ukraine raised a range of risks from disruptions to parts to energy supply or even cyber attacks. “These risks could be exacerbated by the potential expropriation of assets of Russian subsidiaries,” Mercedes-Benz said. Russia’s ruling party, United Russia, said t…