The US formed no nation in 1948. They did incorporate the State of Hawaii though. The State of Israel was formed in 1948, this was though more from aid from the Soviet Union and Czechoslavakia, as it was Beria who supplied the Zionists with many of the arms they needed to fend off the 6-nation Arab onslaught. The US may have played a role by not interfering, and Jewish businessmen and mafiosos like Bugsy Siegel contributed financially and with manpower. Britain wanted to have a two-state solution drawn out of its mandate after it realized it had no hope of governing the territory, as did the UN, but the Arab invasion put a halt to any hope of a peaceful resolution. No outside nation formed Israel in 1948, the Zionists formed it themselves through a fearsome struggle against 6 hostile countries. Both sides had their international friends and enemies. It can be said that without Nazi Germany, there would easily have been no Palestinian movement whatsoever, as the Mufti Al Husseini was Hitler's right hand man in the Middle East.
The answer you are looking for is Israel.
However, the phrasing of the question misconstrues the authority of the United Nations Resolution 181, which was passed on November 29, 1947. Most people incorrectly believe that the UN Resolution "created" a Jewish State (Israel) and an Arab State (Palestine) on the map. This is not the case. The United Nations does not have the power or authority to "create" nations, only to recognize nations that come into existence and to provide legitimate avenues for those nations to realize their ability to self-determine.
What the UN Resolution does provide for is the permission for the different ethno-religious groups in Mandatory Palestine to declare a state. In the case of most mandates, the understanding was that the mandate would eventually become independent as one new state, like Iraq or Syria had. The case of Palestine was therefore unique and needed the permission to deviate from the traditional path of independence. Because of there being two states, provisional borders had to be provided, which is why a map was used, but those borders would only come into play if both sides decided to remain at peace.
The Jews acted on the permission granted to them by UN Resolution 181 by declaring independence on May 14, 1948 (nearly six months after the Resolution was passed) and therefore creating the State of Israel.
In 1947, Britain, tired of terrorist attacks against its army and personnel, handed the "Palestinian problem" to the United Nations for resolution. The United Nations initially favoured a democratic, non-sectarian state, but pressure from the Soviet Union and the United States resulted in a resolution in favour of division.
In 1948, Israel unilaterally declared independence, leaving the United Nations powerless to do anything further, other than to refuse Israel a voice in the General Assembly. On 11th May 1949, Israel consented to negotiate UN proposals and Israel was accepted as a member of the United Nations, then one day later Israel reneged on any further discussions.
The nation of Israel was formed in 1948. Israel has a population of 7.94 million people, and the population of Jerusalem is 773,000.
Israel.
Israel
Israel was created in 1948 from the British Mandate of Palestine.
United Biscuits was created in 1948.
The present nation of Israel was created on May 14, 1948. David Ben Gurion was the first president. The United States recognized it as a legal nation the same day.
May 14, 1948
Israel in 1948.Israel, 1948. by United Nations partition.....................
Eccleshill United F.C. was created in 1948.
Guardian - United States - was created in 1948.
United Jharkhand Party was created in 1948.
Highgate United F.C. was created in 1948.
The present nation of Israel was created on May 14, 1948. David Ben Gurion was the first president. The United States recognized it as a legal nation the same day.
May 15th 1948.