

This post title is completely misleading. Kallas explicitly says that international law and the UN Charter must be respected - nothing about endorsing any invasion. She is saying the opposite.
From the UN Charter (Article 2(4)):
All Members shall refrain from the threat or use of force against the territorial integrity or political independence of any state.





The EU has repeatedly stated that Maduro lacks legitimacy and has defended a peaceful transition. A “peaceful transition” is not a military operation. In EU language it means elections, negotiations, and constitutional processes. Illegitimacy does not equal a green light for foreign force.