French SNCF railway workers on strike, holding red flares and wearing vests of French CGT and Sud Rail labour unions, enter the headquarters of stock market operator Euronext at La Defense business and financial district as part of a "day of expression of railway anger" following months of strikes and a failed attempt to halt pension reforms, in Courbevoie near Paris, France, April 20, 2023. REUTERS/Benoit Tessier