Professor John O' Brennan engaged in a large number of public events covering European themes in the Spring semester of 2024. These included:
-Invited speaker, Brussels Employer-Employee Relations Group, Sitges, Spain, 13 June 2024
-Keynote lecture at the Arqus summer school on Ukraine and EU Enlargement in Wroclaw, Poland, 3-6 June 2024
-Keynote lecture for the Department of Social Protection on the current politics of the European Union, 8 May 2024
-Moderator and speaker at the Irish Institute for International and European Affairs roundtable with Ivan Krastev, 7 May 2024
-Invited Speaker, UK-Ireland security and defence issues, Cambridge University, 9 April 2024
-Chair and moderator, Maynooth University/Arqus International Women's Day event, Brussels, 6 March 2024