Chinese People's Liberation Army soldiers jump through rings of fire in a war game as part of the show for the public during an open day at the Ngong Shuen Chau Naval Base on Hong Kong's Stonecutters Island July 28, 2012. The naval base was open to the public on Saturday, four days ahead of the PLA Army Day on August 1. [Photo/Agencies]

A soldier splashes through the mud during training in high temperatures in Jinan city, East China's Shandong province, July 23, 2012. [Photo/Asianewsphoto]