Nakba

النكبة or Al-Nakba ( “disaster ” or “catastrophe” in Arabic) is the term commonly used for the Palestinian Catastrophe, the calamity that happened to the Palestinians in 1948. Jewish military forces, later Israeli, commenced on a major operation with the aim of permanent expelling the Palestinian people so they could create their own nation-state for the Jews. The disaster resulted in the driving out of a majority of Palestinian Arabs from historic Palestine and subsequently the State of Israel. Those who were displaced now live in the occupied West Bank, the Gaza Strip and neighbouring Arab states. In addition, thousands of Palestinians were killed and injured during this traumatic catastrophe.
Historical context.
The early decades of the 20th century brought a profound change in the Middle East. A massive immigration of Zionists occurred after the Balfour Declaration drafted by Great Britain during World War I. They wanted to settle in Palestine with the intention of founding a Jewish State. Both the surrounding countries and the Arab indigenous populations of Palestine resisted the mass immigration that was arising in their area. This resulted in a heavy dispute between the Zionists and the Arab folks in Palestine. After years of conflict the British government demanded the United Nations to formulate a solution for the situation that took place in Palestine. The plan to divide Palestine into separate Arab and Jewish states was rejected by Arab leaders, they denied any compromise. 
Throughout the negotiations the Palestinian Arabs lacked effective leadership. On top of that the disorder intensified when the independence of the state of Israel was announced by David Ben-Gurion on May 14, 1948. The British ended the mandate over Palestine on May 15, 1948.
Palestinian vs Israeli point of view.
Up to the present day, Palestinian and Israeli people have a contrasting perspective on the Palestinian catastrophe, the Nakba. Both sides have experienced the historical events differently, which caused a dispute till the 21st century.
Palestinian perspective.
The Palestinians often see the Nakba as a dramatic and sad event in the history of the state of Palestine. They see themselves as sufferers of Israeli aggression in their country. Many Palestinians think that they had to suffer because of the Holocaust, while they were not involved in this genocide.
In the Palestinian point of view, the fugitives in 1948 were expelled by jewish aggression based on ethnicity.
Israeli perspective.
The Israeli people mostly see the Nakba as a fight for independence. They often see the ¨fight for independence¨ as a legitimate reason because of the Holocaust during World War II. Because of the many jewish deaths and a lot of them expelled from their homes, the jewish people see the Nakba as a justification for the misery in World War II. The Israelis see the Nakba as a development of a new state: Israel. The jewish people say, instead of the Palestinians, that the Palestinians fled the country by their own decisions and not because of a jewish ethnic cleansing.
Aftermath.
The result of the Nakba was a wave of Palestinian fugitives inside Palestine &amp; Israel, but also to neigbouring countries. The UNRWA (The United Nations Relief and Works Agency for Palestine Refugees in the near East) stated that there were 520.000 Palestinian refugees in 1948.
The amount of refugees from Palestine increased significantly as shown in the table below.