AEST 17:00, Fri Jul 25 2014
The world's largest international maritime war exercise is currently taking place in the Pacific Ocean.
Known as the Rim of the Pacific Exercise (Rimpac), it is held every two years.
This year's event sees China taking part for the first time, which allows the Chinese and US a non-confrontational opportunity to learn more about each other's capabilities.
Secrecy still hovers around much of China's military hardware, so other nations participating can observe Chinese vessels up close.
The involvement helps reassure South-east Asian countries that the US is willing to engage with China while lowering fears of an anti-China coalition.
Photos: Reuters, AP
The US-led naval exercises taking place in the Pacific involve 22 nations.