Humanitarian crises

FILE - In this Dec. 6, 2017 file photo, Houthi Shiite rebels inspect the rubble of the Republican Palace that was destroyed by Saudi-led airstrikes, in Sanaa, Yemen. Airstrikes by Saudi Arabia and its allies in Yemen are on a pace to kill more civilians in 2018 than last year despite US claims that the coalition is working to prevent such bloodshed, a database tracking violence shows. The war, nearly four years old, may have killed as many as 80,000 people, according to the figures. (AP Photo/Hani Mohammed, File)

An Israeli soldier stands near a burning bus after it was hit by a mortar shell fired from Gaza near the Israel Gaza border, Monday, Nov. 12, 2018. Israeli media say six people were wounded by Palestinian fire, including a 19-year-old who was critically hurt when a mortar shell hit the bus. (AP Photo/Tsafrir Abayov)

An explosion caused by Israeli airstrikes on Al-Rahma building in Gaza City, Monday, Nov. 12, 2018. Palestinian militants on Monday fired dozens of rockets and mortar shells into southern Israel, and the Israeli military responded by dispatching fighter jets to strike throughout the Gaza Strip. (AP Photo/Adel Hana)

Smoke rises from a mortar attack by Gaza militants on Israel, in Gaza City, Monday, Nov. 12, 2018. Palestinian militants on Monday fired dozens of rockets and mortar shells into southern Israel, critically wounding an Israeli teen, in an intense barrage of projectiles aimed at seeking revenge for a deadly Israeli military incursion late Sunday. The Israeli military responded by dispatching fighter jets to strike throughout the Gaza Strip. (AP Photo/Adel Hana)

Palestinian mourners carry the bodies of two of the seven Hamas militants who were killed in an Israeli raid late Sunday, during their funerals in Khan Younis, southern Gaza Strip, Monday, Nov. 12, 2018. Thousands of mourners in the Gaza Strip buried seven Palestinians, including a local Hamas commander, killed after an Israeli incursion into the territory, which also killed one Israeli army officer. The cross-border fighting came just days after Israel and Hamas reached indirect deals, backed by Qatar and Egypt, to allow cash and fuel into Gaza. (AP Photo/Adel Hana)

Israeli soldiers stand near the southern Israel Gaza border, Monday, Nov. 12, 2018. Israeli Prime Minister Benjamin Netanyahu rushed back to Israel on Monday, hours after an Israeli army officer and seven Palestinians, including a local Hamas commander, were killed after an incursion by Israeli special forces into the Gaza Strip. (AP Photo/Tsafrir Abayov)

Israeli Prime Minister Benjamin Netanyahu, left, and his wife Sara, with Canadian Prime Minister Justin Trudeau, right, attend ceremonies at the Arc de Triomphe Sunday, Nov. 11, 2018 in Paris. Over 60 heads of state and government were taking part in a solemn ceremony at the Tomb of the Unknown Soldier, the mute and powerful symbol of sacrifice to the millions who died from 1914-18. (AP Photo/Francois Mori, Pool)

Israeli Prime Minister Benjamin Netanyahu, left, and his wife Sara, with Canadian Prime Minister Justin Trudeau, right, attend ceremonies at the Arc de Triomphe Sunday, Nov. 11, 2018 in Paris. Over 60 heads of state and government were taking part in a solemn ceremony at the Tomb of the Unknown Soldier, the mute and powerful symbol of sacrifice to the millions who died from 1914-18. (AP Photo/Francois Mori, Pool)

Israeli Prime Minister Benjamin Netanyahu, left, and his wife Sara, with Canadian Prime Minister Justin Trudeau, right, attend ceremonies at the Arc de Triomphe Sunday, Nov. 11, 2018 in Paris. Over 60 heads of state and government were taking part in a solemn ceremony at the Tomb of the Unknown Soldier, the mute and powerful symbol of sacrifice to the millions who died from 1914-18. (AP Photo/Francois Mori, Pool)

Israeli Prime Minister Benjamin Netanyahu, left, and his wife Sara, with Canadian Prime Minister Justin Trudeau, right, attend ceremonies at the Arc de Triomphe Sunday, Nov. 11, 2018 in Paris. Over 60 heads of state and government were taking part in a solemn ceremony at the Tomb of the Unknown Soldier, the mute and powerful symbol of sacrifice to the millions who died from 1914-18. (AP Photo/Francois Mori, Pool)