ABU DHABI — Abu Dhabi Crown Prince Sheikh Mohamed bin Zayed Al Nahyan, who is also the deputy supreme commander of the armed forces in the United Arab Emirates, has received a telephone call from US National Security Advisor Jake Sullivan. Jake Sullivan expressed Washington's thanks and appreciation for the UAE's efforts to reach a ceasefire and push toward a political solution to the conflict in the Ethiopian Tigray region, the UAE's official news agency WAM reported on Thursday. The meeting stressed the importance of providing humanitarian assistance to the people in the Tigray region who are suffering from difficult living conditions. Sheikh Mohamed and Sullivan discussed ways of bolstering friendship and cooperation ties between the UAE and the United States in order to serve their mutual interests and maintain security and stability in the region.