European Commission President Jose Manuel Barroso faces difficult talks in Moscow today with Russian leaders on how to mend ties shredded by trade rows, a war and the recent gas supply crisis, according to DPA. Energy security is expected to top the agenda after the European Union saw gas supplies cut for nearly two weeks in the freezing cold last month while Russia resolved a bilateral dispute with Ukraine over gas deliveries and transits. Friday's summit was initially to be held last August, but was postponed because of Russia's war with Georgia - a conflict that further antagonized the EU's ties with Moscow. But European diplomats emphasized the need to get relations with Moscow back on track ahead of the talks.