MUSCAT, OMAN - OCTOBER 22: (----EDITORIAL USE ONLY MANDATORY CREDIT - " PALESTINIAN PRESIDENCY / HANDOUT" - NO MARKETING NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTS----) Palestinian President Mahmoud Abbas (R) is welcomed by Sultan of Oman Sayyid Qaboos bin Said Al Said (L) in Muscat, Oman on October 22, 2018. (Photo by Palestinian Presidency - Handout/Anadolu Agency/Getty Images)