Why is it so difficult for the EU to agree on a common military action in Ukraine?

Different interests and beliefs about whether a common military action would work make a group decision difficult.
85% (58 votes)
Even though most EU leaders believe a collective military action would work, none individually is ready to do what it takes.
15% (10 votes)
Total votes: 68
Learning objectives: 
Understanding the logic of collective action.
Understanding the different nature of preference aggregation and collective action problems.
Understanding the public nature of the benefits from a military intervention in Ukraine.
Understanding the national costs of a military intervention in Ukraine.
Presentation videos: