Sometimes a group wants to be alone. 
Sometimes a group wants to leave a big land. 
Some groups do this in a peaceful way. Other times, it can be hard. 
People might leave to keep their own way of life. They may want to protect their own language.
They may also want to be fair to everyone. This can help people feel safe.
It is a big change for a land. It can make a new home for people.
Secession is when a group leaves a large country. 

Groups may want to secede for many reasons. Some want to protect their own culture or language. Others may feel they are being treated unfairly. They might want to control their own money or resources. Some groups want to rule themselves to be more efficient.
Many things can lead to more secessions. In the 1900s, many new states formed. Some groups grew stronger and wanted their own land. Other large empires became too hard to manage. New rules in the world also helped small states survive. They can get help from groups like the United Nations.
There are also reasons why people argue against secession. Some say it can cause chaos. Others say it might make a country harder to defend. Some worry it is unfair to the people left behind. It is a complex way that the world changes.
Secession is a big word for a very important idea. It happens when a group leaves a larger country or political group. 

There are many different ways that secession can look. Some groups leave a large federation of many states. Other groups might leave a unitary state that has one central government. A group might be located in the middle of a country. This is called enclave secession because it is surrounded by the old state. Other groups are near the edge, which is called peripheral secession. Some groups leave all at once, which is called dissolution. In other cases, only one part leaves, which is called partition. 
Many things changed in the 20th century to make secession more common. Political scientist Bridget L. Coggins found four main reasons for this. First, ethnic groups became more organized to seek their own states. Second, large empires found it harder to keep control of their colonies. Third, some secessionist movements grew much stronger and more powerful. Fourth, many states and international groups began to agree to these demands. 
Philosophers and leaders have debated if secession is right or wrong. In 1991, Allen Buchanan wrote about the morality of political divorce. He said secession might be okay if a group is being treated unfairly. This often happens to groups that were conquered in the past. 
People also argue against secession for several important reasons. Some say it might make the remaining country harder to defend. Others worry that it could lead to chaos or a lack of order. There is also the idea of "distributive justice." This means wealthy areas might not want to stay with poorer areas. Some leaders worry that losing land might hurt the state's ability to provide for its people. Even if a group wants to leave, the original state might have spent a lot of money on roads and buildings there. These are the many sides of a very complex topic.
Secession is the formal withdrawal of a group from a political entity. In international law, it is a process where an integral part of a state's territory leaves unilaterally. This means the group leaves without the consent of the original state. The process usually begins when a group issues an act of secession. This might be a formal declaration of independence. The ultimate goal is to create a new state or entity. This new entity is independent of the group it left behind.
There are several ways a secession might occur. A group might leave a federation or confederation. These are political entities that have substantial reserved powers. In contrast, a group might leave a unitary state. A unitary state is governed by a single central unit with few powers for sub-units. Secession can also be described by where the land is located. Enclave secession happens when the seceding area is completely surrounded by the original state. Peripheral secession occurs when the group is located along a border.
Secession can also involve different scales of separation. National secession involves leaving an entire national state. Local secession involves moving from one entity into another within the same state. Some processes result in partition, where the original state keeps its structure. Other processes lead to dissolution. In dissolution, all political entities break their ties to create several new states. 
Political scientists have studied why secession increased during the 20th century. Bridget L. Coggins identified four potential explanations for this rise. First is ethnonational mobilization, where ethnic minorities organize to pursue their own states. Second is institutional empowerment. This happens when empires find it harder to maintain colonies or member states. Third is relative strength, as secessionist movements become more powerful. Finally, negotiated consent occurs when home states or the international community agree to the demands. 
Other factors also influence the success of new states. Some scholars link secession to the discovery and extraction of resources. Tanisha Fazal and Ryan Griffiths suggest the international system has become more favorable for new states. For example, new states can receive assistance from the United Nations. They can also get help from the World Bank and the International Monetary Fund. Additionally, Alberto Alesina and Enrico Spolaore argue that high levels of free trade and peace reduce the benefits of being in a large state. This can motivate nations to seek secession.
Philosophers have debated the morality of political divorce. In the 1990s, Allen Buchanan provided a systematic account of the subject. He suggested secession might be justified in certain circumstances. One major reason is the oppression of ethnic or racial groups. This is especially true for groups that were previously conquered. There are two main philosophical theories. Choice Theory suggests a general right to secede for any reason. Just Cause Theory argues secession should only happen to fix grave injustices. 
Political scientist Aleksander Pavkovic describes five justifications within liberal theory. Anarcho-Capitalism focuses on individual liberty and private property. Democratic Secessionism views the right as belonging to a territorial community. Communitarian Secessionism focuses on groups wanting to improve political participation. Cultural Secessionism allows minority groups to protect their distinct national identity. Finally, the secession of threatened cultures allows a minority to protect itself from a dominant majority.
However, there are many arguments against secession. Allen Buchanan notes that losing territory might hurt a state's ability to defend itself. This is known as a self-defense argument. There is also the concern of protecting majority rule. Some worry that secession could lead to anarchy or chaos. Another argument involves distributive justice. This suggests that wealthy areas should not be allowed to secede from poorer ones. Finally, states may argue they have a right to prevent wrongful taking. This refers to the state's previous investments in local infrastructure.
🖼️ Images & Media (9)
More to explore
✨ What else?
Related topics you might enjoy
🪜 Step back
Simpler topics to build understanding
What is Nepedia?
A free, ad-free encyclopedia for children. Every article is written at five reading levels, so the same page works for a five-year-old and a fifteen-year-old — use the level switcher above to see this one change. No account needed to read.