Three pilots were killed after two L-39 military trainer jets collided in the sky over Ukraine's northern Zhytomyr region, the country's Air Force said...
Two military helicopters have collided during a training mission over the US state of Kentucky, media reported on Thursday, citing an army spokeswoman.
The incident...
By Zhong Sheng
The recent collision of the USS Connecticut, a Seawolf-class nuclear attack submarine of the U.S., with an unknown object in the South...