<sod >Europe isÃÂÃÂ urging Turkey to open its border to tens of thousands of Syrians who have fled a regime offensive backed by Russian bombardment in the northern province of Aleppo.< eod>< sod > Europe has urged Turkey to open its border to tens of thousands of Syrians fleeing an offensive by Syrian government troops ÃÂ¢ÃÂÃÂ backed by Russian bombardment ÃÂ¢ÃÂÃÂ in the northern province of Aleppo.< eod>