The 1948 Israeli War of Independence was between the neighboring Arab countries and the newly formed state of Israel. The Arab countries did not send troops to help the people that are today known as "Palestinians" but rather they sent troops to drive the Jews into the sea. Most of the "Palestinian Arabs" fled to avoid the fighting. Remember, in 1948 they were not referred to as "Palestinians". This name was was created by the Soviet disinformation masters in 1964 when they created the Palestinian Liberation Organization (PLO). The term "Palestinian People" as a description of Arabs in Palestine appeared for the first time in the preamble of the 1964 PLO Charter, drafted in Moscow. The Charter was affirmed by the first 422 members of the Palestinian National Council, handpicked by the KGB. This term was formally used by newspapers around the world after 1967.
United Nations Resolution 181 recommended a partition of the territory from the British Mandate for Palestine into two states - one for Jews and one for Palestinian Arabs. But the rejection of partition by the Arabs left in place as the legally operative Mandate for Palestine, the 1924 Anglo-American Convention, and Article 80 of the United Nations Charter. All of the Arab countries objected to the creation of the Jewish state and fought a war against its creation. This was Israel's War of Independence in 1948. Despite their superior numbers, the Arab countries lost the war and the Palestinian state never materialized because of this loss. In the war that was waged, the territory allotted to be the Palestinian state by the UN partition resolution was divided between Israel and Jordan. The "Palestinian Arabs" were rejected by every single Arab country, with the exception of the small percentage that ended up in refugee camps in Jordan where they remain to this day.