Go is an abstract strategy game for two players who place black and white stones on a grid, trying to fence off more territory than their opponent. Stones that are fully surrounded by the other colour are captured and removed. The game was invented in China more than 2,500 years ago and is believed to be the oldest board game still played continuously. A 2016 survey by the International Go Federation estimated over 46 million people worldwide know how to play, and most of them live in East Asia. Its simple rules produce enormous strategic depth.

Israeli reports also say the cabinet directed the military to prepare for a possible new attack on Iran.

Angkor, near Siem Reap in northern Cambodia, was the capital of the Khmer Empire, which ruled much of mainland Southeast Asia between roughly the 9th and 15th centuries. At its height the city spread across about 3,000 square kilometres, making it the largest pre-industrial city on Earth by area. Its growth depended on water: huge reservoirs called barays, along with canals and embankments, stored monsoon rain and carried it to rice fields. That system let farmers harvest more than once a year and fed a very large population through the dry season. The temple complex of Angkor Wat, built in the early 12th century, is the best-known monument and still stands at the heart of the park.