MONGOLIA

MONGOLIA

People visit a photography exhibition marking 70 years of diplomatic ties between China and Mongolia， Footprints of History， in Ulan Bator on December 23， 2019

AUSTRALIA

Smoke billows from a bushfire in the Blue Mountain area， New South Wales， on December 21， 2019. Two volunteer firefighters were killed on duty in combat against the devastating fire

HONDURAS

Police officers stand guard in front of a jail in the central city of El Porvenir on December 22， 2019. Eighteen inmates were killed in a violent clash at the jail

CHILE

President Sebastian Pinera （second left） applauds during the signing of a constitutional amendment in Santiago on December 23， 2019， which paved the way to hold a referendum in April on a new constitution

CUBA

Prime Minister Manuel Marrero， first to hold that position in 43 years， greets lawmakers during a legislative session in Havana on December 21， 2019. The post was revived at the proposal of President Miguel Diaz-Canel

YEMEN

A child is given a polio vaccine during an immunization campaign targeting over 5.5 million children in Sanaa on December 24， 2019