PARIS (Reuters) – French trade unions CGT and Sud Rail on Tuesday called on railway workers to take part in a nationwide strike on Jan. 31 over pension reform, and opt for further strike action on Feb. 7 and Feb. 8. “Our federations are asking railway workers to strike en masse on Jan. 31 and to hold a meeting on Jan. 31 to decide whether to intensify their action through two consecutive days of strikes on Feb. 7 and Feb. 8,” the two unions said in a joint statement. More than a million people marched through French cities on Jan. 19 to denounce President Emmanuel Macron’s plans to raise the r…