What is the fine-grained topic of the following text: Several thousand Palestinian demonstrated in the West Bank and Gaza, including in Jerusalem, Ramallah, Rafah, Hebron, Khan Younis, Jabaliya, and Nablus, after Palestinian factions called for a “Day of Rage.” Dozens were arrested by Israeli security forces, as protestors threw Molotov cocktails and rocks, while burning Israeli and U.S. flags, and stomping on posters of the U.S. president. Only return the topic.
Palestinian "Day of Rage" Protests in West Bank and Gaza