#1 The legal basis for Israel is a vote in the United Nations general assembly.
A vote where Great Britain abstained.
UN Resolution 181
The 33 countries that cast the “Yes” vote were: Australia, Belgium, Bolivia, Brazil, Byelorussia, Canada, Costa Rica, Czechoslovakia, Denmark, Dominican Republic, Ecuador, France, Guatemala, Haiti, Iceland, Liberia, Luxembourg, Netherlands, New Zealand, Nicaragua, Norway, Panama, Paraguay, Peru, Philippines, Poland, Sweden, Ukraine, Union of South Africa, USSR, USA, Uruguay, Venezuela. (Among other countries, the list includes the US, the three British Dominions, all the European countries except for Greece and the UK, but including all the Soviet-block countries.)
The 13 countries that voted “No” were: Afghanistan, Cuba, Egypt, Greece, India, Iran, Iraq, Lebanon, Pakistan, Saudi Arabia, Syria, Turkey, Yemen.
The ten countries that abstained are: Argentina, Chile, China, Colombia, El Salvador, Ethiopia, Honduras, Mexico, United Kingdom, Yugoslavia.
# All previous masters of the territory got mastership through conquest.
# Abraham - conquest - given by God
# Joshua - conquest - given by God
# Egypt - conquest
# Babylonians - conquest
# Romans - conquest
# Arabs - conquest
# Crusaders - conquest
# Arabs - conquest
# Ottomans - conquest
# Napoleon - conquest
# Great Britain - conquest/Mandate: League of Nations
# Israel: UN Resolution 181
Please state any disagreement or addition to this list, and I will focus getting sources for this.
#2 The Ottoman Empire signed away their rights to the territory,
and the League of Nations gave Great Britain a mandate to prepare the territories for independence.
https://wwi.lib.byu.edu/index.php/Treaty_of_Lausanne
#3 Jew Immigration started already when the Ottomans ruled over the territories,
In 1920, the British Government's
Interim Report on the Civil Administration of Palestine stated that there were hardly 700,000 people living in Palestine:
"There are now in the whole of Palestine hardly 700,000 people, a population much less than that of the province of Gallilee alone in the time of Christ. Of these 235,000 live in the larger towns, 465,000 in the smaller towns and villages. Four-fifths of the whole population are Moslems. A small proportion of these are Bedouin Arabs; the remainder, although they speak Arabic and are termed Arabs, are largely of mixed race. Some 77,000 of the population are Christians, in large majority belonging to the Orthodox Church, and speaking Arabic. The minority are members of the Latin or of the Uniate Greek Catholic Church, or—a small number—are Protestants. The Jewish element of the population numbers 76,000. Almost all have entered Palestine during the last 40 years. Prior to 1850 there were in the country only a handful of Jews. In the following 30 years a few hundreds came to Palestine. Most of them were animated by religious motives; they came to pray and to die in the Holy Land, and to be buried in its soil. After the persecutions in Russia forty years ago, the movement of the Jews to Palestine assumed larger proportions. Jewish agricultural colonies were founded. They developed the culture of oranges and gave importance to the Jaffa orange trade. They cultivated the vine, and manufactured and exported wine. They drained swamps. They planted eucalyptus trees. They practised, with modern methods, all the processes of agriculture. There are at the present time 64 of these settlements, large and small, with a population of some 15,000.
[33]"
#4 the Arabs sent missions to complain at the court, and their complaints were rejected.
From BBC program, "The Ottoman Palestine"
#5 The only change the British did was to adopt laws intended to stop immigration.
The 1939 white paper mentioned in:
http://www.jewishvirtuallibrary.org/jsource/History/mandate.html
