Political and civil unrest

In this Thursday, Dec. 20, 2018 handout photo provided by a Sudanese activist, protesters chant slogans during a demonstration, in Khartoum, Sudan. The protest was one in a series of anti-government protests across Sudan, initially sparked by rising prices and shortages. (Sudanese Activist via AP)

Bosnian Serb arrest activist of group "Justice for David" during police raid in the Bosnian town of Banja Luka, 240 kms northwest of Sarajevo, Bosnia, on Tuesday, Dec.25, 2018. Bosnian Serb police have detained Davor Dragicevic, the man whose quest for the truth over the death of his son has sparked months of anti-government protests. (AP Photo/Radivoje Pavicic)

In this March 21, 2018 photo smog and fog rise from the Chelyabinsk Electrometallurgical Plant in Chelyabinsk, Russia. Residents of Chelyabinsk are expressing worry over industrial pollution after heavy smog enveloped the Ural Mountains city this month and remained for two weeks. On Sunday, Dec. 23, 2018 about 700 protesters braved temperatures of -20 degrees Celsius (-4 degrees Fahrenheit) to demand cleaner air. (AP Photo/Dmitry Balakiev)

In this Sunday, Dec. 23, 2018 handout photo provided by a Sudanese activist, people chant slogans and attack a national security vehicle during a protest, in Kordofan, Sudan. The protest on Sunday was the latest in a series of anti-government protests across Sudan, initially sparked by rising prices and shortages. (Sudanese Activist via AP)

In this image made from video taken on Saturday, Dec. 22, 2018, a French policeman, at left, brandishes a gun at yellow vest protesters during clashes on the Champs Elysees in Paris. French authorities on Sunday defended aggressive police actions to contain yellow vest protest violence after a policeman was seen briefly brandishing a gun at a surging crowd in Paris. (Clement Lanot via AP)

Lebanese anti-government protesters clash with riot policemen as they try to reach the government building in central Beirut, Lebanon, Sunday, Dec. 23, 2018. Hundreds of Lebanese protested against deteriorating economic conditions as politicians are deadlocked over forming a new government. (AP Photo/Bilal Hussein)

Riot police officers are seen on the Champs Elysees avenue with the Arc de Triomphe in the background, during a demonstration, in Paris Saturday, Dec. 22, 2018. France's yellow vest protesters, who have brought chaos to Paris over the past few weeks with their economic demands, demonstrated in sharply reduced numbers Saturday at the start of the Christmas and New Year holidays. (AP Photo/Kamil Zihnioglu)

A woman holds a photograph of a 1989 uprising victim while singing the national anthem along with others during a protest in Bucharest, Romania, Saturday, Dec. 22, 2018. More than 1,000 Romanians have demanded more democracy during an anti-government march to commemorate the victims of 1989 anti-communist revolt. (AP Photo/Vadim Ghirda)