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Pope Francis waves as he arrives for a preach on the occasion of the Jubilee of priests and seminarians, on June 2, 2016 at the basilica St. Paul outs...

Iraqi government forces backed by fighters from the Popular Mobilisation units re-group as they engage in combat in the Saqlawiyah area north west of...

Pro-government forces drive in armoured personnel carriers as they engage in combat with the support of the Popular Mobilisation units in the Saqlawiy...

A member of the Iraqi government forces walks near an armoured military vehicle as they engage in combat with the support of the Popular Mobilisation...

Iraqi government forces armoured personnel carriers are stationed on the road as they engage in combat with the support of the Popular Mobilisation un...

Smoke is seen rising from a building as Iraqi government forces backed by fighters from the Popular Mobilisation units engage in combat in the Saqlawi...

The new L5 (6.5 euros, $7.2) banknote bearing the image of wartime leader Winston Churchill is on show at its unveiling by the Bank of England at Blen...

The new L5 (6.5 euros, $7.2) banknote bearing the image of wartime leader Winston Churchill is on show at its unveiling by the Bank of England at Blen...

Taiwanese students pose as they cross a path on the Aiguille du midi mountain (3 842 m) in the Mont Blanc massif in the French Alps, on June 2, 2016,...

Taiwanese students pose as they cross a path on the Aiguille du midi mountain (3 842 m) in the Mont Blanc massif in the French Alps, on June 2, 2016,...

Mountain guides of Chamonix, cross a peak to another on the Aiguille du midi mountain (3 842 m) in the Mont Blanc massif in the French Alps, on June 2...

Mountain guides of Chamonix, cross a peak to another on the Aiguille du midi mountain (3 842 m) in the Mont Blanc massif in the French Alps, on June 2...

Mountain guides of Chamonix, cross a peak to another on the Aiguille du midi mountain (3 842 m) in the Mont Blanc massif in the French Alps, on June 2...

Mountain guides of Chamonix, cross a peak to another on the Aiguille du midi mountain (3 842 m) in the Mont Blanc massif in the French Alps, on June 2...

A general view shows smoke rising from buildings as the Iraqi government forces backed by fighters from the Popular Mobilisation units engage in comba...

Iraqi government forces backed by fighters from the Popular Mobilisation walk carrying weapons towards the front line as they engage in combat in the...

Pro-government fighters drive a heavily armoured vehicle as they prepare to engage in combat in the Saqlawiyah area, north west of Fallujah, during an...

Iraqi government forces supported by the Popular Mobilisation units engage in combat in the Saqlawiyah area, north west of Fallujah, during an operati...

Palestinian members of the Hamas security forces show their skills during a graduation ceremony in Gaza city on June 2, 2016. / AFP PHOTO / MOHAMMED A...

Palestinian members of the Hamas security forces, some dressed as Israeli soldiers, show their skills during a graduation ceremony in Gaza city on Jun...

Palestinian members of the Hamas security forces stand at attention during a graduation ceremony in Gaza city on June 2, 2016. / AFP PHOTO / MOHAMMED...

Philippines' president-elect Rodrigo Duterte gives a press conference in Davao City on June 2, 2016. Rodrigo Duterte warned journalists on June 2, 20...

Security forces clash with people trying to reach Miraflores presidential palace to protest against the severe food and medicine shortages, in Caracas...

Security forces clash with people trying to reach Miraflores presidential palace to protest against the severe food and medicine shortages, in Caracas...

This handout picture released by the Vatican press office shows Pope Francis during his preach on the occasion of the Jubilee of priests and seminaria...

Democratic presidential candidate Hillary Clinton speaks at a campaign rally in Balboa Park on June 2, 2016 in San Diego, California. Clinton said ri...

A supporter attends a campaign rally for Democratic presidential candidate Hillary Clinton in Balboa Park on June 2, 2016 in San Diego, California. C...

Democratic presidential candidate Hillary Clinton speaks at a campaign rally in Balboa Park on June 2, 2016 in San Diego, California. Clinton said ri...

A Trump hat burns during a protest near where Republican presidential candidate Donald Trump held a rally in San Jose, California on June 02, 2016. P...

Republican presidential candidate Donald Trump speaks during a rally in San Jose, California on June 02, 2016. Protesters who oppose Donald Trump scu...

Forces loyal to Libya's UN-backed unity government fire during clashes with jihadists of the Islamic State (IS) group around 23 kilometres (14 miles)...

Nigel Farage. MEP, Leader of the UKIP Party, arrives at Ladbrokes in the City of London, 2nd June 2016, to bet L1,000 on a Leave Europe result in the...

Nigel Farage. MEP, Leader of the UKIP Party, arrives at Ladbrokes in the City of London, 2nd June 2016, to bet L1,000 on a Leave Europe result in the...

Mandatory Credit: Photo by Andrew McCaren/LNP/REX/Shutterstock (5700869j) Nigel Farage visits Leeds Kirkgate Market today to campaign for an out vote...

Mandatory Credit: Photo by Andrew McCaren/LNP/REX/Shutterstock (5700869k) Nigel Farage visits Leeds Kirkgate Market today to campaign for an out vote...

Pope Francis arrives for his weekly general audience in St. Peter's Square at the Vatican, Wednesday, June 1, 2016. (AP Photo/Alessandra Tarantino)

Pope Francis arrives for his weekly general audience in St. Peter's Square at the Vatican, Wednesday, June 1, 2016. (AP Photo/Alessandra Tarantino)

Pope Francis arrives for his weekly general audience in St. Peter's Square at the Vatican, Wednesday, June 1, 2016. (AP Photo/Alessandra Tarantino)

Pope Francis acknowledges faithful as he arrives for his weekly general audience in St. Peter's Square at the Vatican, Wednesday, June 1, 2016. (AP Ph...

Pope Francis arrives for his weekly general audience in St. Peter's Square at the Vatican, Wednesday, June 1, 2016. (AP Photo/Alessandra Tarantino)

Pope Francis waves to faithful as he arrives for his weekly general audience in St. Peter's Square at the Vatican, Wednesday, June 1, 2016. (AP Photo/...

Ma Wenyi whose father was one of thousands forced to work during World War II at a mine for Mitsubishi Mining Corp., cries as he demands to join a pre...

In this photo picture taken through the windshield of an Iraqi army armored vehicle, smoke rises near Iraqi counterterrorism forces after Islamic Stat...

A child plays in front of bishops attending Pope Francis' weekly general audience in St. Peter's Square at the Vatican, Wednesday, June 1, 2016. (AP P...

Pope Francis prays during his weekly general audience in St. Peter's Square at the Vatican, Wednesday, June 1, 2016. (AP Photo/Alessandra Tarantino)

A man walks over an empty platform after a strike starts at the Gare du Nord train station, in Paris, Wednesday, June 1, 2016. Workers at the SNCF nat...

Tourist gather under umbrellas on a rainy day in downtown Frankfurt, Germany, Wednesday, June 1, 2016. (AP Photo/Michael Probst)

Pigeons fly away from a bridge over the river Main in front of the high rises of the banking district on a rainy day in Frankfurt, Germany, Wednesday,...

The empty Lyon Perrache train station, central France, is reflected in a mirror, Wednesday, June 1st, 2016. Workers at the SNCF national rail authorit...

A construction worker stands on a street overflowing by the river Seine, near the bridge Pont Neuf in Paris, Wednesday, June 1, 2016. Paris City Hall...