Explain the role Israel's illegal settlement program plays in the Israel-Palestine conflict.
The Israeli settlement program involves the building of Jewish settlements in the West Bank and East Jerusalem, which are territories that were occupied by Israel during the 1967 war. The international community, including the United Nations, has declared these settlements as illegal under international law.

The settlements are seen by many as a major obstacle to the peace process between Israel and Palestine, as they infringe on Palestinian land and threaten the possibility of a contiguous and viable Palestinian state. The settlements also contribute to the displacement of Palestinian communities, the destruction of their homes and livelihoods, and the restriction of their movement and access to resources.

The Israeli government argues that the settlements are necessary for security reasons and that they have a historic and religious connection to the land. However, the continued expansion of settlements undermines the possibility of a two-state solution and perpetuates the conflict.

The settlement program has been a major source of tension and violence between Israelis and Palestinians, as well as a point of contention in international relations. Many countries, including the United States, have called on Israel to halt settlement construction and to work towards a peaceful resolution to the conflict.