Britain controlled Palestine from 1918-1948.
Britain, which had promised in 1917 in the Balfour Declaration to create a 'national home for the Jews' in Palestine. Britain was trying to keep in with both the Arabs and the Jews - and this little game of 'divide and rule' didn't work.
Britain
Britain took a special interest in Egypt from 1876 (?) onwards because the country lay on the shortest route from Britain to India. Moreover, as soon as the British Navy adopted oil as the fuel for its ships, the Middle East became very spicy indeed ...
In WW1 Britain conquered Mesopotamia (Iraq), Jordan and Palestine from the Ottoman Empire.
Palestine was a British Mandate in the Middle East, pursuant to the League of Nations description of a Mandate.
because they were bored
japan
The United Nation
Japan had controlled Korea from 1910 - 1945. Before that, Korean was part of China.
Syria is independent, but is in a state of civil war. Palestine is quasi-independent because of the Israeli Occupation of the West Bank and the non-recognition of Hamas-controlled Gaza by most countries around the world.
Nothing, as the question is written. Syria, Palestine, and Iraq were mandates/proto-states that were carved out of the Ottoman-controlled Middle East as a result of Sykes-Picot Agreement during World War I and were only realized in the Treaty of Versailles after World War I. As as a result, there was nothing to promise non-existent entities. What the question is likely intending to ask is "What was promised to the Arabs concerning the regions that would become Syria, Palestine, and Iraq during World War I?" -- If that is the case, please see the Related Link below.
Palestine
the british
Britain controlled Palestine after WW2
Britain controlled Palestine from the end of World War I until February 1947 when, in response to Zionist terrorist attacks, Britain handed Palestine over to the United Nations to solve the Palestinian problem.
England :)
The United Kingdom.
japan
japan
Great Britain, which captured Palestine from the Ottoman Empire in World War 1.
The United Nation
Japan had controlled Korea from 1910 - 1945. Before that, Korean was part of China.
Poland