The ancient city of Sana 'a, a world cultural heritage, was damaged in many places. Why is it damaged?

The ancient city of Sana 'a, a world cultural heritage, has been destroyed to a great extent due to the recent weather, but there are also human factors.

The ancient city of Sana 'a, located in Yemen, has a history of more than 2,500 years. There are many ancient buildings with a long history and unique features in the ancient city, and more importantly, people still live in the community. The ancient city of Sana 'a was listed on the World Heritage List in 1986, which is an important world cultural heritage. However, due to the changeable weather this year, Yemen has been under heavy rain for nearly two weeks, which has caused extensive damage to the ancient city of Sana 'a and is facing very serious damage problems. In fact, if other buildings are washed away by heavy rain, they will be damaged, but they will not face damage. Because the ancient city of Sana 'a is too old, and no one has renovated the damaged part before, the heavy rain is tantamount to adding insult to injury. Moreover, in addition to this reason, there are human reasons. As we all know, Yemen is a war-torn country. During the war, no one would care whether the building was damaged. In many wars, artillery fire directly attacked the ancient city of Sana 'a, which was tantamount to a devastating blow to ancient buildings. Because compared with modern buildings, ancient buildings have no sophisticated technology and high-quality building materials, and they can't resist powerful attacks from outside. In fact, another important reason is that Yemen's economic situation is particularly poor because of years of war. In order to protect people's safety, the Yemeni government can't have more funds for the maintenance of the ancient city, so only local residents can make simple repairs to the damaged places, and this rainstorm has made matters worse, completely destroying some houses. All these reasons have caused the ancient city of Sana 'a, which is now riddled with holes. Faced with the world heritage that is about to be completely destroyed, the Yemeni government is powerless at this time, so it appeals to people all over the world, hoping that the international community can lend a helping hand to help Yemen protect the ancient city of Sana' a and the important world cultural heritage.