Amid concerns North Korea could be preparing to conduct its first nuclear test in five years
North Korea invaded the US-backed South on June 25, 1950, triggering a three-year war that killed millions
As the devastating conflict ended with an armistice rather than a peace treaty
After Trump revealed the summit would take place in the Vietnamese capital
Analysts say a full peace treaty poses many complications, and will need extensive negotiations
Jeong Kyeong-doo will be South Korea’s first defense minister with an air force background in 24 years
South's President Moon Jae-in's trip to the North's capital would be the first such visit for more than a decade
The Pentagon says Pyongyang has indicated several times that they have as many as 200 sets of remains
North Korean officials have indicated in the past that they have the remains of as many as 200 US troops
Donald Trump is set to meet N Korean leader Kim Jong Un at an unprecedented summit on Tuesday in Singapore