The South Korean military

South Korean Marine Corps' amphibious vehicles take part in a
mock landing operation in the sea off Incheon, west of Seoul.

A member of the South Korean Special Warfare Forces reacts
during a winter exercise in Pyeongchang, South Korea.

South Korean soldiers check military fences as they patrol near the
demilitarized zone separating North Korea from South Korea, in Paju, north of Seoul.

A South Korean navy submarine launches an indigenous cruise
missile during a drill at an undisclosed location in this picture
released by the navy in Seoul.

South Korean air Force fighter planes participate in a drill,
after North Korea on Tuesday conducted its third nuclear test.

The South Korean navy's Choi Young KDX-II destroyer is seen
during a military drill on the West Sea.

Members of the Special Warfare Command take a cold bath during
an annual severe winter season drill in a photo opportunity for the
media in Pyeongchang, about 180km (113 miles) east of Seoul.

Members of the Special Warfare Command take part in an annual
severe winter season drill during a photo opportunity for the media in Pyeongchang, about 180 km (111 miles) east of Seoul.

Members of the special warfare command parachute from a helicopter during practice for the upcoming 61st anniversary of the Armed Forces Day, in the sky above the Gyeryong military headquarters, about 140 km (87 miles) south of Seoul.

A South Korean naval patrol ship approaches to its floating base
as the sun rises off Yeonpyeong Island.