Astana rider and the leader of the Tour de France, Alberto Contador of Spain (c.) holds a Saint Bernard on a leash before the start of the 16th stage. The course took Tour de France riders from Martigny in Switzerland and Bourg Saint Maurice in France on Tuesday. Eric Gaillard/Reuters
Visitors are reflected in mirrors forming a sphere displayed at the China Pavillion for the Shanghai World Expo 2010 in Beijing, China. The US signed an agreement last week confirming its involvement in the Shanghai World Expo, ending months of speculation that the US would skip the event because of a lack of funding. The Expo will run from May 1 to Oct. 31 next year. Andy Wong/AP
China's Jiant Tingting and Jiang Wenwen dive on their way to win the bronze medal in the duet technical synchronized swimming event at the FINA Swimming World Championships in Rome on Tuesday. Mark J. Terrill/AP
Russian soldiers make parachute jumps during a training session for the upcoming joint anti-terror military drill in Taonan, China. About 1,300 troops from Chinese People's Liberation Army (PLA) and 1,300 Russian troops are preparing for the five-day exercise, code-named 'Peace Mission-2009,' scheduled from July 22, according to Xinhua. China Daily/Reuters
Elementary school students take part in a summer military camp for civilians, run by retired marines in Ansan, South Korea, on Tuesday. Yonhap/Reuters
Travis Smith keeps an eye on 'Killer,' a nine-pound miniature pinscher, as he looks out at the rain in West Quincy, Mo., on Tuesday. Philip Carlson/Quincy Herald-Whig/AP
Thomas Daley of Britain competes in the men's 10m platform diving final at the World Championships in Rome on July 21. The 15-year-old diver beat Olympic champion Matthew Mitcham and Chinese diver Qiu Bo to become the youngest diver to win a world title. Tony Gentile/Reuters
A model presents a dress by Luchi Cabrera during a Flamenco fashion show on Triana bridge a day before the Santa Ana party in Seville, Spain on July 20. The Santa Ana party will run until July 26. Marcelo del Pozo/Reuters
An Afghan soldier watches the street from a window ledge following suicide attacks in Gardez, the provincial capital of Paktiya province, east of Kabul, Afghanistan on Tuesday. Militants attacked several government centers in an eastern Afghan city using complex tactics that have become a signature of major Taliban assaults. Police shot and killed two militant suicide bombers hiding under women's burqas, officials said. Musadeq Sadeq/AP
Abdullah Abdullah, one of the 41 candidates for the upcoming Afghan presidential election (3rd r.), greets supporters during an electoral rally in Qarabagh district, north of Kabul, on July 21. Afghanistan's presidential election will be held on August 20. Ahmad Masood/Reuters
A pedestrian with an umbrella and the Diet building are reflected in a puddle as it rains in Tokyo on July 21. Japanese Prime Minister Taro Aso dissolved parliament's lower house on Tuesday for an August 30 election that could see his conservative party ousted for only the second time in its more than half-century reign, according to some polls. Yuriko Nakao/Reuters
Gavin Visnak and his sister Sonja play on a fallen tree at their grandmother's house in Wheat Ridge, Colo. on Tuesday. A storm with high winds, heavy rain, and hail rolled through the area late Monday night, downing trees and power lines. Ed Andrieski/AP
Rickshaw pullers transport commuters through a flooded street after heavy rains in the northern Indian city of Mathura on July 21. Rains in most parts of India's key northwestern grain-producing areas have boosted the rice crop and the weather office has forecast more showers in the region, officials said on Tuesday. K.K. Arora/Reuters
Saudi Arabia began airstrikes Wednesday against Houthi rebels in Yemen. Saudi Arabia, the United Arab Emirates, Kuwait, Qatar and Bahrain said they would answer a request from Yemeni President Abed Rabbo Mansour Hadi 'to protect Yemen.'
ByKen Dilanian, AP Intelligence Writer
Saudi Arabia began airstrikes Wednesday against Houthi rebel positions in Yemen, vowing that the Sunni kingdom will do "anything necessary" to protect its neighbor from Iran-backed Shiite rebels.