On 4 July 2026, the side event, “Let’s Start Worrying Again: What Can Parliamentarians Do to Reduce Nuclear Risks?”, co-organised by the Canadian, Swedish and Mongolian delegations together with Open Nuclear Network (ONN), brought together more than 40 parliamentarians and professionals from the OSCE Parliamentary Assembly (OSCE PA) during the 33rd Annual Session in The Hague. The discussion explored how parliamentarians can contribute to reducing nuclear risks through oversight, diplomacy, dialogue and policymaking.