Czech Soldiers place a wreath during a ceremony outside the Czech Radio building in Prague to commemorate the 46th anniversary of the Soviet-led occupation of the former Czechoslovakia in 1968

Filip Singer/EPA

Soldiers place a wreath during a ceremony outside the Czech Radio building in Prague to commemorate the 46th anniversary of the Soviet-led occupation of the former Czechoslovakia in 1968

Indonesian anti-riot police stand guard as presidential candidate Prabowo's supporters try to pass a blockade near the constitutional court in Jakarta. Indonesian ex-general Prabowo Subianto angrily claimed widespread cheating cost him victory in the country's presidential election at the start of legal challenge to the results.

Bay Ismoyo/AFP/Getty images

Indonesian riot police stand guard as former presidential candidate Prabowo Subianto’s supporters try to pass a blockade near the constitutional court in Jakarta, which is hearing a legal challenge by the ex-general who alleges widespread cheating cost him victory in the recent elections

South Korean special police officers descend the stairs from subway station during an anti-terror exercise as part of Ulchi Freedom Guardian or UFG in Seoul, South Korea.

Lee Jin-man/AP

South Korean special police officers enter a subway station in Seoul, South Korea, during an anti-terror exercise as part of Ulchi Freedom Guardian, an annual joint military operation between South Korea and the US

An Afghan guard of honour stands as the national anthem plays during an event to mark Independence Day at the Ministry of Defence compound in Kabul

Wakil Kohsar/AFP/Getty Images

A guard of honour stands as the national anthem plays during an event to mark Independence Day at the Ministry of Defence compound in Kabul, Afghanistan.

A boy carries his bicycle through floodwater in the Morigaon district of Assam state, India. Dozens of people were killed and more than a million affected as floods driven by torrential monsoon rains ravaged India's northern and eastern states.

  © EPA

Dozens of people were killed and more than a million affected as floods driven by monsoon rains ravaged the northern and eastern states of India over the weekend.

A woman wearing a face mask exercises with others at a park in Beijing, China. Just over half of people between the ages of 20 and 39 do not exercise regularly, making them the country's "least active" adults.

Wang Zhao/AFP/Getty Images

A woman wearing a face mask exercises with others at a park in Beijing, China. Just over half of people between the ages of 20 and 39 do not exercise regularly, making them the country’s “least active” adults.

People shield themselves from the rain with umbrellas as they cross an intersection in Hong Kong.

  © Dale de la Rey/AFP/Getty Images

People shield themselves from the rain with umbrellas as they cross an intersection in Hong Kong.

College students with painted faces pose as they take part in India's Independence Day celebrations in the southern Indian city of Chennai.

Babu/Reuters

College students with painted faces pose as they take part in India’s Independence Day celebrations in the southern Indian city of Chennai.

A US soldier, part of the NATO-led International Security Assistance Force (ISAF), manning a machine gun onboard a Chinook helicopter over the Gardez district of Paktia province, Afghaniustan.

Marai Shah/AFP/Getty Images

A US soldier, part of the Nato-led International Security Assistance Force, mans a machine gun on board a Chinook helicopter over the Gardez district of Paktia province, Afghanistan

Aircrew aboard an RAF Hercules prepare to deliver humanitarian aid to Yazidi refugees in the Sinjar mountains in Northern Iraq.

Cpl Neil Bryden RAF/MoD Crown Copyright/PA Wire

Aircrew aboard an RAF Hercules prepare to deliver humanitarian aid to Yazidi refugees in the Sinjar mountains in Northern Iraq.