Never has humanity had a
   permanent international court with the authority to hold individuals
   accountable for their decisions to commit aggression. Now we do.
   In New York in 2017, States Parties to the Rome Statute made the
   historic decision to enable the ICC to prosecute the crime of
   aggression – marking the first time that humanity has had a permanent
   international court with the authority to hold individuals accountable
   for their decisions to commit the worst forms of the illegal use of
   force.
   The ICC's jurisdiction over the  crime of aggression went into effect
   on 17 July 2018, which also marked the 20th anniversary of the Rome
   Statute.
   For reference, find 60 highlights to the handbook underscoring modern
   thought on the crime of
   aggression: [1]https://drive.google.com/file/d/1aHeW9WHQjcWpmPX7h7YO3Yl
   AEYkSHtQY/view?usp=drivesdk

References

   1. https://drive.google.com/file/d/1aHeW9WHQjcWpmPX7h7YO3YlAEYkSHtQY/view?usp=drivesdk