A more thorough explanation:

International crimes are actions that are considered illegal under international law. These crimes are serious violations of human rights and can be committed by individuals or groups. Some examples of international crimes include:

• Genocide: the intentional killing of a large group of people, especially those of a particular ethnic group or nation.
• Crimes against humanity: inhumane acts committed against any civilian population, including murder, enslavement, torture, and rape.
• Human trafficking: the illegal trade of human beings for the purposes of forced labor, sexual exploitation, or organ harvesting.
• Piracy: the act of attacking and robbing ships at sea.
• Terrorism: the use of violence and intimidation in the pursuit of political aims.

These crimes are considered international because they are not limited to one country or region. They can occur anywhere in the world and affect people from different nations. International crimes are taken very seriously and can result in severe consequences, including imprisonment or even death.