The European Commission proposed introducing mandatory gas-saving targets for all EU member states if supplies deteriorate to a crisis level in a winter emergency plan unveiled on Wednesday. “We have to prepare for a potential full disruption of Russian gas, and this is a likely scenario,” said Ursula von der Leyen, president of the commission, in a Brussels press conference. In the event of a gas emergency in the bloc, the EU executive arm wants to impose the compulsory targets to force EU member states to save gas if voluntary measures are deemed insufficient. The EU executive is calling on …