The rapid click of camera shutters filled an otherwise silent room in the heart of Paris, 10 days after one of Europe’s most tragic terror attacks.

French President Francois Hollande and U.K. Prime Minister David Cameron addressed the media side-by-side, with the U.K.’s Union Jack, the French Tricolor and the European Union (EU) flag hanging steps behind.

As expected, Cameron pledged to ramp up cross-border cooperation to tackle terrorism and urged for stronger external borders, collection of passenger records, intelligence sharing on the return of foreign fighters and a crackdown on the illegal arms trade.

“Now we’ve got to turn words into action. We simply cannot afford to wait,” he said.

Less than four months later, 32 people lost their lives in coordinated strikes on Brussels’ main airport and a metro just blocks from key EU buildings.