A protestor stands in clouds of tear gas amid clashes with riot police during a demonstration on May Day (Labour Day), to mark the international day of workers, more than a month after the government pushed an unpopular pensions reform act through parliament, in Nantes, northwestern France, on May 1, 2023. - Opposition parties and trade unions have urged protesters to maintain their three-month campaign against the law that will hike the retirement age to 64 from 62. (Photo by LOIC VENANCE / AFP)