Defending champion Spain's Rafael Nadal returns the ball to Crotia's Ivan Ljubicic during their fourth round match of the French Open tennis tournament, at the Roland Garros stadium in Paris, on Monday. Lionel Cironneau/AP
Ryan Blair (c.) and his friend Kasim Brown play in water released from an open fire hydrant on Memorial Day, Monday, in Philadelphia. Matt Rourke/AP
Chris Talbott cleans the gravestone of her grandfather, Roy D. Dolez, during Memorial Day celebrations at the National Cemetery in Los Angeles, on Monday. Dolez was a horseshoer in the US Army during WWI. Americans from Washington to California marked Memorial Day with parades, barbecues and somber moments of reflection. Richard Vogel/AP
Pakistani Fatima Bekhtyar (c), attends an Islamic religious class along with other girls in a mosque, in a slum area on the outskirts of Islamabad, Pakistan, on Monday. Muhammed Muheisen/AP
A tattered flag flies from a battered tree in a devastated Joplin, Mo. neighborhood on Monday. Charlie Riedel/AP
Red Cross volunteers gather buckets to take donations for Joplin tornado victims before a baseball game between the Kansas City Royals and the Los Angeles Angels in Kansas City, Mo., on Monday. Orlin Wagner/AP
Kansas City Royals' Billy Butler (16) beats the tag by Los Angeles Angels catcher Hank Conger during the seventh inning of a baseball game in Kansas City, Mo., on Monday. Butler was safe at home plate. Orlin Wagner/AP
Policemen clash with pro-democracy demonstrators during a protest organized by the "February 20 Movement", who are demanding political reforms, in Casablanca, on Sunday. Macao/Reuters
A firefighter attempts to extinguish a fire near Viana do Castelo, Portugal, on Sunday. The cause of the fire is still under investigation, firefighters said. Rafael Marchante/Reuters
Matthew Busche, from left, Ted King, Tejay Van Garderen, and George Hincapie, battle for the lead during the closing laps of the the USA Cycling Pro road race on Monday, in Greenville, S.C. Patrick Collard/The Greenville News/AP
A girl runs past Memorial Day kites on the beach in Santa Monica, California, on Sunday. /Lucy Nicholson/Reuters
Woodlands residents watch as a raging wildfire approaches their neighborhood in Amarillo, Texas. Two wildfires have destroyed at least 12 homes on the outskirts of the Panhandle city of Amarillo, Texas Forest Service officials said Monday. Michael Schumacher/The Amarillo Globe News/AP
France's Finance and Economy Minister Christine Lagarde attends a news conference after meeting Brazil's Finance Minister Guido Mantega and Brazil's Central Bank President Alexandre Tombini in Brasilia, on Monday. Ricardo Moraes/Reuters
For more than a decade, Europe has been accustomed to relying on German leader Angela Merkel for strength and stability. But with her bid to form a new government in tatters, the continent may have to look elsewhere for leadership.
Earlier this spring, when President Trump threatened to drop out of a major climate accord and berated fellow NATO members on his first trip to Europe, German Chancellor Angela Merkel rallied the continent.