The United States, Germany, France and Britain have called on the Palestinian Islamist Hamas movement to accept the plan recently presented by US President Joe Biden to end the war in Gaza. They fully support the comprehensive proposal, according to a joint letter published by the Élysée Palace on Thursday evening. On the sidelines of the D-Day commemoration in Normandy, France, the leaders of the four countries called for Hamas to express its full agreement and for the plan to be implemented immediately. The proposal laid out by Biden last week aims to end the Gaza war in three phases. Firstl…