Home2011 Treaties and Agreements ...European Union (11-601) – Agreement on the Participation of the United States in European Union Crisis Management Operations hide European Union (11-601) – Agreement on the Participation of the United States in European Union Crisis Management Operations TIAS Office of Treaty Affairs June 1, 2011 Civil Affairs, Emergencies and Defense: Crisis Management Agreement signed at Washington May 17, 2011; entered into force June 1, 2011. Download attachment [314 KB] Tags Civil Affairs European Union (EU) International Law, Treaties, and Agreements