On Wednesday, June 25, an agreement was signed between Kyiv and the Council of Europe to establish a Special Tribunal for investigating crimes of aggression committed against Ukraine.

President Volodymyr Zelensky, speaking at the signing ceremony alongside the Secretary General of the Council of Europe, Alan Berse, stated: "Justice takes time, but it must be served."

A month prior, the European Union expressed its support for the establishment of this tribunal in Lviv.

What constitutes a crime of aggression? What are the features of the Special Tribunal? How does it differ from the International Criminal Court (ICC)?

Here are eight key points to know about the tribunal's powers and limitations.

What is a crime of aggression?

The International Criminal Court defines a crime of aggression as "the use of armed force by a state against the sovereignty, territorial integrity, or independence of another state."

Thus, the leadership of the state that initiated the invasion will be held accountable.

This crime is one of the four core crimes defined by the Rome Statute: genocide, crimes against humanity, war crimes (serious violations of the Geneva Conventions), and finally, the crime of aggression.