By ITP
US and S. Korean joint military training
US Marines and South Korean Marines have staged a joint landing operation at Pohang seashore in South Korea. The scale of this year’s joint exercise is thought to be the largest ever, and comes at a time South and North Korea have exchanged artillery fire across disputed maritime boundaries.

U.S. Marines from 3rd Marine Expeditionary Force, Battalion landing team deployed from Okinawa, Japan participate in the U.S. and South Korean Marines joint landing operation at Pohang seashore on March 31, 2014 in Pohang, South Korea. It has been reported by South Korean media that the scale of this annual joint exercise is one of the largest in the past. (Getty Images)

South Korean Marine’s Landing Vehicle Tracked (LVT) move their position during the U.S. and South Korean Marines joint landing operation at Pohang seashore on March 31, 2014 in Pohang, South Korea. It has been reported by South Korean media that the scale of this annual joint exercise is one of the largest in the past. (Getty Images)

South Korean Marine’s Landing Vehicle Tracked (LVT) move their position during the U.S. and South Korean Marines joint landing operation at Pohang seashore on March 31, 2014 in Pohang, South Korea. It has been reported by South Korean media that the scale of this annual joint exercise is one of the largest in the past. (Getty Images)

U.S. Marines from 3rd Marine Expeditionary Force, Battalion landing team deployed from Okinawa, Japan participate in the U.S. and South Korean Marines joint landing operation at Pohang seashore on March 31, 2014 in Pohang, South Korea. It has been reported by South Korean media that the scale of this annual joint exercise is one of the largest in the past. (Getty Images)

South Korean marine’s Landing Vehicle Tracked (LVT) move their position during the U.S. and South Korean Marines joint landing operation at Pohang seashore on March 31, 2014 in Pohang, South Korea. It has been reported by South Korean media that the scale of this annual joint exercise is one of the largest in the past. (Getty Images)

U.S. Marines from 3rd Marine Expeditionary Force, Battalion landing team deployed from Okinawa, Japan, and South Korean marines participate in the U.S. and South Korean Marines joint landing operation at Pohang seashore on March 31, 2014 in Pohang, South Korea. It has been reported by South Korean media that the scale of this annual joint exercise is one of the largest in the past. (Getty Images)