Israel-Palestine conflict

Watch the videos below. Then explain in a one-page response why Jerusalem is at the heart of the Israel-Palestine conflict
Link of the video 1- https://www.youtube.com/watch?v=fMeyRzKZnO8
Link of the video 2- https://www.youtube.com/watch?v=4Mjw3VKd2qM
Link of the video3- https://www.youtube.com/watch?v=Hi91aDmYI2E&feature=youtu.be
Link of the video 4- https://www.youtube.com/watch?v=LnxzTG_kUB8&feature=youtu.be
Link of the video 5- https://www.youtube.com/watch?v=1wo2TLlMhiw&feature=youtu.be