- Decision by the member states based on the treaties (Photo: www.eurunion.org/eu/index.php?option=com_cont...)
A joint action is a decision by the member states based on the treaties.
The Lisbon Treaty only contain this decision making method under development, see Art. 210 TFEU.
A joint action was a decision under the Common Foreign and Security Policy before the Lisbon Treaty entered into force. It could be adopted if approved by a qualified majority. The areas for qualified majority were decided by unanimity in the Council.