Final answer:
The Balfour Declaration led to British support for a Jewish homeland in Palestine, but resulted in conflicting promises to Arab nationalists. The consequence was the division of the territory under the British Mandate, setting the stage for ongoing conflict in the region.
Step-by-step explanation:
The outcome of the Balfour Declaration was the support of the British government for the establishment of a Jewish homeland in Palestine, although it did not immediately result in the creation of such a state. The alliance between the weakened Ottoman Empire and Germany during World War I resulted in the dissolution of the Ottoman Empire and the partition of its territories, with Britain gaining control over Palestine.
In World War I, both the Jewish community, through the Balfour Declaration, and Arab nationalists were promised control over the land of Palestine, leading to conflicting claims. After the establishment of Israel as a nation in 1948, the land was divided with Israel under partial Jewish control and the rest managed as an international mandate, the British Mandate of Palestine, which included provisions for both Jewish and Arab communities.