Nicolas Sarkozy may well win his pension battle against the unions, but the French president will have little cause to celebrate. After weeks of strikes, fuel blockades, and street protests, the Senate finally passed his austerity bill late last week, another major legislative step toward raising the retirement age from 60 to 62 and the age at which workers can retire on full pension from 65 to 67. He needs to reassure financial markets that heavily indebted France is serious about reform. But as Sarkozy nears victory in Parliament, France’s unions are determined to keep fighting. The latest polls say a full 69 percent of the public is on their side, and new strikes and protests are scheduled for Oct. 28 and Nov. 6, just before Sarkozy signs the bill into law.