Treaty

A treaty is a formal agreement between sovereign states or other groups recognized by international law, like international organizations. These agreements follow international rules and can be called many things, such as international agreements, protocols, conventions, pacts, or exchanges of letters. Only the ones that are legally binding count as treaties.

People have used international agreements for a very long time, even in ancient times. They became more common during the early modern era. In 1969, a big meeting created the Vienna Convention on the Law of Treaties, which set out clear rules for making, changing, and ending treaties.

Treaties can cover many important topics, like keeping peace, trading goods, protecting the environment, and supporting human rights. They can also create groups like the International Criminal Court and the United Nations to help manage these issues. Treaties are a main source of international law and have helped shape the rules that guide countries since the early 1900s. Every treaty must follow the rule that agreements must be kept, meaning countries promise to do what they say they will in good faith.

Modern usage and form

A treaty is a formal, written agreement between countries. It is usually signed after a special event that shows the countries agree to work together. Treaties have been used for a long time, but since the late 1800s, they have followed a similar pattern.

Most treaties start with a part called the preamble. This tells the names of the countries and leaders who are making the treaty and explains why they are working together. After the preamble, the main parts of the treaty begin, called articles. These articles explain what the countries have agreed to do. At the end of the treaty, there is usually a closing part that says where and when the treaty was signed, followed by the signatures of the leaders.

Bilateral and multilateral treaties

Bilateral treaties are agreements between two countries or groups. Sometimes, more than two countries can be part of a bilateral treaty if they are split into two groups with rights and duties between the groups.

A multilateral treaty is an agreement among many countries, where each country has rights and duties with every other country in the treaty. These treaties can be about regions or the whole world.

Role of the United Nations

The United Nations helps countries make big treaties that many nations agree to. Under the United Nations Charter, treaties must be registered with the UN to be used in the International Court of Justice. This helps make sure treaties are not kept secret. After treaties are made, they go through special steps to become official, including signature, ratification, and entry into force.

Adding and amending treaty obligations

Reservations

Main article: Reservation (law)

Sometimes, a country may add conditions when agreeing to a treaty. These conditions are called reservations. They change what the country must do under the treaty. Reservations must be made when the country first agrees to the treaty, not later. Now, reservations are usually allowed as long as they do not go against the main purpose of the treaty.

If a country makes a reservation, other countries can choose to accept it or object to it. If they accept, both countries are not bound by the part of the treaty affected by the reservation when dealing with each other. If they object, that part of the treaty no longer applies between them.

Amendments

There are three ways to change an existing treaty. First, a formal amendment requires all parties to go through the whole agreement process again. This can take a long time, and not all original parties may join the amended treaty. When deciding what each country must do, they are only bound by the parts both agreed to. Treaties can also be changed informally by their governing body for small, procedural changes. Small fixes to a treaty can be made by a procès-verbal, usually to correct clear mistakes in the treaty's text.

Protocols

See also: Environmental protocol

A protocol is a treaty that adds to or changes an earlier treaty. Countries that agreed to the first treaty do not have to agree to the protocol. For example, the United Nations Framework Convention on Climate Change set up general rules, and the Kyoto Protocol added specific rules later.

Execution and implementation

Treaties can start working as soon as a country agrees to them. Sometimes, a treaty needs extra rules from the country’s own laws to work well.

When it’s not clear what a treaty means, experts explain its words in a fair way. No country can force its own meaning on others, but if all countries agree on a special meaning, it’s like adding a new rule.

When countries sign a treaty, they agree to follow it and recognize the other country as independent.

If there is a disagreement about a treaty, special courts or groups can help decide. These might use existing courts like the International Court of Justice. Problems can be solved in different ways, depending on what the treaty says.

Ending treaty obligations

Treaties are not always forever. Sometimes, countries can decide to stop following a treaty, but they usually need to follow certain steps. For example, some treaties let a country leave if enough other countries also leave. Other treaties do not allow leaving at all.

If a country breaks the rules of a treaty badly, other countries can stop following it with that country, either for a while or even forever. Sometimes, a treaty ends on its own if certain conditions are met, like reaching a set end date. A treaty can also end if situations change a lot in ways that were not expected when the treaty was made. But, a country cannot end a treaty just because it broke the rules itself.

Cartels

Cartels were special agreements between countries from the 1600s to the 1800s. They helped countries work together on certain issues, even when they were rivals in other areas. These agreements were usually handled by government workers.

In the United States, cartels helped with kind actions, like sending ships to carry messages or prisoners between fighting sides.

In Europe, cartels had many uses. They helped countries work together, even while still competing in some ways. For example, they agreed to send back people who had run away or broken laws, share prisoners of war fairly, keep postal and trade routes open, and work together against people who broke trade laws. These cartels were used until the 1800s, when the word "convention" started being used instead.

Invalid treaties

Sometimes, a treaty that looks like a real agreement might not actually bind countries together. This can happen for a few reasons.

One reason is if a country was forced to agree to the treaty. For example, some treaties between Japan and Korea from long ago were seen as unfair because Korea was pressured.

A treaty can also be invalid if the person signing it did not have the right to do so under their country's laws. Another reason is if there was a big mistake, trickery, or pressure when the treaty was made.

Finally, a treaty is not valid if it goes against very important rules that everyone agrees on, like those against harming people unfairly or treating groups badly. These rules cannot be ignored.

Treaties under domestic national law

Main article: Monism and dualism in international law

In different countries, the rules about how treaties work inside that country can vary.

In Australia, the government can make treaties, but they are usually shared with parliament before being signed. These treaties become part of Australia’s laws only if parliament passes a law to support them. The Department of Foreign Affairs and Trade helps manage these treaties.

In Brazil, the president can make treaties, but they need approval from Congress first. After that, a special government announcement is needed to make the treaty part of Brazil’s laws.

In India, making laws about treaties is up to the national parliament.

In the United States, there are different kinds of international agreements. “Treaties” need approval from a special group of leaders called Senators. Other types of agreements need approval from just the president or from both parts of Congress.

Treaties and indigenous peoples

Treaties were important when Europeans explored and settled new lands. They often made agreements with local people, called indigenous peoples, to claim control. Sadly, many of these agreements were unfair to the native people, who sometimes did not fully understand what they were agreeing to.

In a few places, like Ethiopia and Qing China, local leaders used treaties to protect their lands better. They learned European ways and used treaties to stop powerful countries from taking too much control.

In countries like New Zealand and Canada, treaties helped local groups keep some of their independence. Today, these treaties are very important in discussions about politics and rights.

Australia

Main article: Indigenous treaties in Australia

For Indigenous Australians, no official treaty was ever made giving Europeans the right to the land. Instead, a idea called terra nullius was used, meaning the land belonged to no one before Europeans arrived. Later, this idea was changed by Mabo v Queensland, which allowed for recognizing native title in Australia.

Victoria

On 10 December 2019, the Victorian First Peoples' Assembly met for the first time in the Upper House of the Parliament of Victoria in Melbourne. The Assembly’s goal is to create rules for making treaties between the Victorian Government and Aboriginal Victorian peoples. It will also set up a Treaty Authority to watch over these talks and make sure they are fair.

United States

Before 1871, the United States made many treaties with Native American tribes. But on 3 March 1871, a law was passed that stopped making these treaties. After that, the government used other ways to make agreements with tribes instead of formal treaties.

Canada

When Europeans settled in Canada, they signed many treaties with Indigenous First Nations peoples. These treaties can be grouped into three types: commercial, alliance, and territorial. Commercial treaties started in the 1600s for trading furs. Alliance treaties came later, and territorial treaties about land rights were signed between 1760 and 1923. Many of these treaties are still recognized today by the Government of Canada.

Treaty perceptions

Indigenous peoples and Europeans had very different ideas about what treaties meant. For Indigenous groups, treaties were about keeping good relationships and sharing the land fairly. Europeans often saw treaties as legal contracts that they did not always follow.

Treaties today

Canada now has 25 Modern Treaties with 97 Indigenous groups. These treaties help protect Indigenous rights by giving them control over large areas of land, money, and ways to manage their lands and resources. They also help protect traditional ways of life and give Indigenous groups a say in decisions about their lands.