Syrian workers remove rubble from the neighborhood of al-Qadam in Damascus, Syria, on Sept. 26, 2019. The Syrian government started removing rubble from previously rebel-held areas in al-Qadam to prepare for the return of civilians to their homes. (Photo by Ammar Safarjalani/Xinhua)

A bulldozer removes rubble from the neighborhood of al-Qadam in Damascus, Syria, on Sept. 26, 2019. The Syrian government started removing rubble from previously rebel-held areas in al-Qadam to prepare for the return of civilians to their homes. (Photo by Ammar Safarjalani/Xinhua)

A bulldozer removes rubble from the neighborhood of al-Qadam in Damascus, Syria, on Sept. 26, 2019. The Syrian government started removing rubble from previously rebel-held areas in al-Qadam to prepare for the return of civilians to their homes. (Photo by Ammar Safarjalani/Xinhua)

Syrian workers remove rubble from the neighborhood of al-Qadam in Damascus, Syria, on Sept. 26, 2019. The Syrian government started removing rubble from previously rebel-held areas in al-Qadam to prepare for the return of civilians to their homes. (Photo by Ammar Safarjalani/Xinhua)

A bulldozer removes rubble from the neighborhood of al-Qadam in Damascus, Syria, on Sept. 26, 2019. The Syrian government started removing rubble from previously rebel-held areas in al-Qadam to prepare for the return of civilians to their homes. (Photo by Ammar Safarjalani/Xinhua)

Bulldozers remove rubble from the neighborhood of al-Qadam in Damascus, Syria, on Sept. 26, 2019. The Syrian government started removing rubble from previously rebel-held areas in al-Qadam to prepare for the return of civilians to their homes. (Photo by Ammar Safarjalani/Xinhua)

A bulldozer removes rubble from the neighborhood of al-Qadam in Damascus, Syria, on Sept. 26, 2019. The Syrian government started removing rubble from previously rebel-held areas in al-Qadam to prepare for the return of civilians to their homes. (Photo by Ammar Safarjalani/Xinhua)

A bulldozer removes rubble from the neighborhood of al-Qadam in Damascus, Syria, on Sept. 26, 2019. The Syrian government started removing rubble from previously rebel-held areas in al-Qadam to prepare for the return of civilians to their homes. (Photo by Ammar Safarjalani/Xinhua)