The Rome Statute of the International Criminal Court, adopted in 1998, defines the crime of aggression and provides the legal framework for its prosecution.

The Rome Statute defines an act of aggression as the use of armed force by a state against the sovereignty, territorial integrity, or political independence of another state, or in any other manner inconsistent with the Charter of the United Nations.

The crime of aggression requires both the intent to commit aggression and knowledge that the act is an aggression. The perpetrator must have the specific intent to use armed force to violate the sovereignty, territorial integrity, or political independence of another state.

The Rome Statute holds criminally responsible individuals who effectively exercise control over or direct the political or military action of a state, including heads of state and government, military commanders, and other individuals who are in a position to influence or control the use of armed force.

The Rome Statute does not provide any specific defenses to the crime of aggression. However, some general defenses, such as self-defense and necessity, may be applicable in certain circumstances.

The crime of aggression became a crime under international law on July 17, 2018, when the amendments to the Rome Statute defining and criminalizing the crime entered into force.

The International Criminal Court has jurisdiction over the crime of aggression, provided that the crime is committed by a national of a state that is a party to the Rome Statute or on the territory of a state that is a party to the Rome Statute.

The maximum penalty for the crime of aggression is life imprisonment.

The crime of aggression can be a constituent element of other international crimes, such as genocide, crimes against humanity, and war crimes.

There are a number of challenges in prosecuting the crime of aggression, including the difficulty in gathering evidence, the lack of cooperation from states, and the political nature of the crime.

There are a number of measures that can be taken to prevent the crime of aggression, including strengthening international cooperation, promoting dialogue and understanding, and establishing early warning systems.

The crime of aggression is a crime against peace and humanity, a violation of the fundamental principles of international law, and a threat to international peace and security.

The United Nations plays a key role in addressing the crime of aggression through the Security Council, the General Assembly, and the Secretary-General.

There have been a number of recent cases of alleged crimes of aggression, including the 2003 invasion of Iraq, the 2008 Russian invasion of Georgia, and the 2014 Russian annexation of Crimea.

The crime of aggression is a relatively new crime in international law and it is likely to remain a controversial and difficult crime to prosecute in the future.