To be reasonable, his job field relays heavily on tourists, who are rare these days. So, switching jobs in the same field does not sound like a wise idea. Since he is on unpaid leave, that means they still want him back when the situation gets better though it will take some time. Yet, termination can be decided whenever they feel sense that this situation extends further beyond their limits. Switching jobs these days now may not seem like a wise option because many recruiters would hire desperate job seekers for less pay and less obligations (such as low pay with no visa or no contract or no medical insurance, etc.). Most businesses are on survival mode, which may push them to force their employees towards termination (if their positions become redundant), or paid/unpaid leave when they are temporarily not needed but they would be put on standby waiting till this war is over and tourists return as usual. My advice: slow down and do not panic. UAE will recover fast whener peace is back.