This is a line between lands.
It marks the border of Germany and Poland. Two big rivers make the line. It goes to the sea. This line helps us know where each country is. Do you like maps?
This line is a border.
It sits between Germany and Poland. Two rivers make the line. These are the Oder and Neisse rivers.
The line reaches the Baltic Sea. In the past, the border was in a different place. After a big war, leaders changed the line. This move gave more land to Poland. Now, both lands agree on this border. It helps people know where each land ends.
It is a very important line on the map.
The Oder–Neisse line is a border.
It sits between Germany and Poland. Most of the line follows two rivers. These are the Oder and the Lusatian Neisse. The line goes all the way to the Baltic Sea.
This border changed after World War II. Before the war, the border was in a different place. At the Potsdam Conference, leaders decided to move it. This move gave more land to Poland. Large areas like Silesia and Pomerania went to Poland. Other parts went to the Soviet Union.
Many people had to move because of these changes. About 12 million German people lived in these lands in 1944. They fled as the Soviet Red Army moved forward.
For a long time, leaders argued about the line. East Germany and Poland agreed to it in 1950. West Germany did not agree right away. Later, in 1972, West Germany signed a treaty about it. Finally, in 1990, a new treaty made it official.
Now, both Germany and Poland accept this line as their border.
The Oder–Neisse line is the modern border between Germany and Poland.
This line mostly follows the paths of two rivers. These are the Oder and the Lusatian Neisse. The line travels all the way north to the Baltic Sea.
A small part of Polish land sits just west of this line. This includes the cities of Szczecin and Świnoujście. The border helps define where one country ends and the next begins.
This border was created through big changes after World War II. At the Potsdam Conference, leaders decided to shift Poland's borders westward. This meant giving certain lands to Poland and others to the Soviet Union.
Large areas like Silesia and Pomerania became part of Poland. The southern part of East Prussia also went to Poland. However, the northern part of East Prussia went to the Soviet Union. This area included the city of Königsberg, which was renamed Kaliningrad.
History shows that these lands have belonged to different groups for a long time. In the 10th to 13th centuries, the lower Oder was a border for Piast Poland. Later, many people lived in these areas with different cultures. In parts of Pomerania, Slavic cultures and languages stayed strong for a long time.
Even in the 19th century, some areas kept their local customs and habits. This long history made the question of borders very important to the people living there.
The move of the border caused many people to leave their homes. In the autumn of 1944, an estimated 12 million German people lived in these territories. Many of them fled as the Soviet Red Army moved forward.
The new border was also a result of tough talks between leaders. Joseph Stalin, the leader of the Soviet Union, had a big say in the matter. He wanted to move the border to help his own political goals.
It took many years for everyone to agree on this line. From 1950 to 1990, the line was the border for East Germany and Poland.
West Germany did not agree with the border right away. They eventually signed a treaty about it in 1972. After Germany reunified in 1989, both countries signed a new treaty in 1990.
This treaty was officially approved in 1992. Today, the Oder–Neisse line is the accepted border between these two neighbors.
The Oder–Neisse line is the term used for the modern border between Germany and Poland.
This boundary is not a straight line drawn on a map. Instead, it generally follows the natural paths of two rivers. These are the Oder and the Lusatian Neisse. The line travels northward until it meets the Baltic Sea.
While most of the land on one side belongs to Poland, a small portion of Polish territory lies west of the line. This includes the cities of Szczecin and Świnoujście. This border is significant because it represents a major shift in European geography following World War II.
The creation of this line involved a complex process of territorial exchange. During the Potsdam Conference, leaders decided to shift Poland's borders westward. This meant that large areas of land were transferred to new countries. Nearly one quarter, or 23.8 percent, of the Weimar Republic's land area was ceded. This area was part of Germany before the war. Most of these territories, such as Silesia and Pomerania, were given to Poland. The southern part of East Prussia was also transferred to Poland.
However, the northern part of East Prussia went to the Soviet Union. This area included the city of Königsberg, which was renamed Kaliningrad.
Historical records show that these lands have seen many different rulers. From the 10th to the 13th century, the lower Oder served as the western border for Piast Poland.
Over many centuries, the ethnic makeup of the region changed. In parts of Pomerania, Slavic cultures and languages remained common until the 18th and 19th centuries. Even in the 19th century, some areas maintained local customs and habits. Some historians noted that certain Slavic national groupings remained unchanged in their character. This long history of different cultures makes the modern border a subject of great historical interest.
The shift in borders happened during a very difficult time in history. In the autumn of 1944, an estimated 12 million German people lived in these territories. Many of them fled as the Soviet Red Army advanced through the region.
The final decision regarding the border was heavily influenced by Joseph Stalin. He was the leader of the Soviet Union at the time. While the Polish government described the line as a result of tough negotiations, modern historians suggest otherwise. The Institute of National Remembrance states that Stalin was the final arbiter. He adopted the idea of a westward shift to ensure Soviet leverage over both Poland and Germany.
Before the current border was set, there were many different proposals for where the line should be. After World War I, the Treaty of Versailles fixed the border between Poland and Germany. This border was adjusted to reflect the ethnic groups living in small areas. In some places, like Upper Silesia, a plebiscite was held to let people vote on which country they preferred. This vote involved over 1.1 million people. However, the process was marked by severe ethnic tensions and protests. In the city of Danzig, which was 90% German and 10% Polish in 1919, a compromise was made. The city became a "Free City" with special rights for Poland.
It took several decades for the Oder–Neisse line to be fully accepted by all neighbors. From 1950 to 1990, the line served as the border between East Germany and Poland.
During this time, the two Communist governments agreed to the boundary. West Germany initially refused to accept the line. They eventually adhered to the border in 1972 after signing a treaty in 1970. The final step occurred after the revolutions of 1989. A newly reunified Germany and Poland signed the German–Polish Border Treaty in 1990. This treaty was officially ratified in 1992, establishing the border as it exists today.
The Oder–Neisse line is more than just a line on a map. It is a connection to the complex history of Central Europe. It connects the natural geography of rivers and seas to the political decisions of world leaders. The line shows how borders can change due to war, negotiations, and shifting populations. Understanding this border helps us understand the modern relationship between Germany and Poland. It serves as a permanent marker of how the map of Europe was reshaped in the 20th century.
Where will your curiosity go next?
🖼️ Images & Media (17)
+ 5 more
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.