Germany expressed skepticism Tuesday over U.S. President Donald Trump’s controversial Middle East peace plan.

“The U.S. proposal raises questions that we will now discuss with our partners in the EU. This includes questions concerning the involvement of the conflict parties in any negotiation process and how the proposal relates to internationally agreed parameters and legal positions,” Foreign Minister Heiko Maas said in a statement.

Germany has long supported a “two-state solution” through negotiations between Israelis and Palestinians and has repeatedly argued that Jerusalem’s status should be settled throughout these negotiations as foreseen in the relevant United Nations resolutions.

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