Former vice president Richard Cheney and his daughter Liz Cheney discuss and sign copies of their book "Exceptional: Why the World Needs a Powerful America" at the Ronald Reagan Presidential Library in Simi Valley, California on September 9, 2015.
A rare Middle East sandstorm hit outside Jerusalem's Old City on September 8, 2015. Israelis and Palestinians woke to yellow skies, exhausting heat and high levels of air pollution as a severe sandstorm that originated in Syria moved into the region.
U.S. President Barack Obama and King Salman bin Abd alAziz of Saudi Arabia hold a bilateral meeting in the Oval Office of the White House September 4, 2015 in Washington, D.C. Pool Photo by Olivier Douliery/UPI
Security guards clashed with protesters outside Trump Tower after Republican presidential candidate Donald Trump signed a pledge not to run as an independent candidate if he loses the Republican Party nomination.
Over 12,000 soldiers and hundreds of tanks, ballistic missile launchers, amphibious assault vehicles, drones, fighter jets, helicopters and other military equipment participate in a massive parade marking the 70th anniversary of victory over Japan and the end of World War II in Beijing on September 3, 2015.
Presiding over the extravaganza, President Xi Jinping, China's most powerful leader in decades, said that China would remain committed to "the path of peaceful development" and unexpectedly vowed to cut 300,000 troops from its 2.3-million strong military - the world's largest. Photos by Stephen Shaver/UPI
Ukrainian riot police and others were injured -- one soldier was reported killed -- by a grenade blast at a violent protest outside parliament in Kiev on Aug, 31, 2015. Hundreds gathered in front of the parliament to protest a constitutional amendment on decentralization to separatist regions.
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