Half of Israelis support the government's plan to apply sovereignty to large parts of Judea and Samaria and the Jordan Valley, although they are divided over whether to take the step without US support, an opinion poll by the Israel Democracy Institute think-tank showed on Wednesday.
The survey found that some 25% of Israelis want their government to apply Israeli law to Jewish settlements and the Jordan Valley even without backing from Israel's closest ally.
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US President Donald Trump's plan for Israeli-Palestinian peace includes Israel keeping most of its settlements in the West Bank, territory that Palestinians want for a future state.
Palestinians have rejected Trump's proposal. They and most of the international community consider Israel's settlement enterprise illegal, something Israel adamantly disputes.
Another 25% of the 771 Jewish and Arab Israelis polled said they preferred any annexation move to go forward only with Washington's backing, while another 30% opposed the move entirely.
The remaining 20% were undecided.
Prime Minister Benjamin Netanyahu has pledged to begin cabinet discussions on July 1 regarding extending Israeli sovereignty to Jewish settlements and the Jordan Valley – a de facto annexation of land Israel has been in control of since the 1967 Six-Day War.
The Trump plan also envisions negotiations leading to a Palestinian state under near-complete Israeli security control, creating what Palestinian leaders say would be a non-viable country.
Israeli settler leaders, who met Netanyahu on Tuesday, have voiced concern that annexation under the Trump blueprint would also entail Palestinian statehood and leave some settlements isolated within Palestinian-ruled territory.
Minister Tzachi Hanegbi told Army Radio on Wednesday that settlers need not worry "because there will never be" a Palestinian state. Israeli-Palestinian talks collapsed in 2014, part of a now-moribund peace process that began in the 1990s.
Earlier this week, Defense Minister Benny Gantz ordered the military to begin preparing for the consequences of annexation, which could stoke Palestinian unrest.
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