international law

Lex mitior, Latin for “more lenient law,” is a legal doctrine providing that when the law changes between the commission of a criminal offense and the final judgment, the more favorable law to the defendant should apply.

Most favored nation refers to a status conferred by a clause in which a country promises that it will treat another country as well as it treats any other country that receives preferential treatment. Most favored nation clauses are frequently included in bilateral investment treaties.

• international law
• public international law
• international economic law
• international trade law

In a legal context, the term "multilateral" refers to agreements, treaties, or actions that involve or include multiple parties or nations.

Multilateral treaties are treaties between multiple states, usually (though not always) denoting participation by a majority of the world's states. Multilateral treaties cover practically every substantive field of international law, from human rights to inter-state agreements on matters such as trade or transportation. 

• international law
• law of treaties

Mutilation is a war crime under international criminal law. In International Criminal Court, a prosecution for mutilation must show the following:

National treatment is a legal concept requiring foreign citizens and products be treated no less favorably than a host country’s own citizens and 

The North Atlantic Treaty Organization, or NATO, is an alliance of 32 countries in Europe and North America with the purpose of guaranteeing the freedom and security of its members. NATO was established in 1949 by the North Atlantic Treaty.

• TREATIES
• TREATY POWER

Nullum crimen sine lege is Latin for "no crime without law." The phrase reflects the principle in criminal law and international criminal law that a person cannot or should not face criminal punishment except for an act that was criminalized by law before they performed the act.

• criminal law
• criminal procedure
• federal criminal prosecutiontrat

An occupation is the work that a person does to earn a living. This can describe both long-term careers or more temporary employment. 

Occupation can also refer to the state of living or residing on a piece of property. The term is commonly used in this context regarding statutes on adverse possession, which require continuous occupation of property for a specified duration.

Opinio juris is a shortened form of the Latin phrase “opinio juris sive necessitatis,” which means "an opinion of law or necessity."  

• international law
• public international law
• customary international law