A fighter of Libya's UN-backed Government of National Accord (GNA) is seen during clashes at the Salah al-Din frontline in Tripoli, Libya, Aug. 1, 2019. Since early April, the government has been engaged in a deadly armed conflict against the east-based army, which is trying to take over the capital Tripoli and overthrow the government. (Photo by Amru Salahuddien/Xinhua)