We now know that Kim Jong-un has made another secret visit to China to meet with President Xi Jinping.
This time the two met in the northeastern Chinese city of Dalian.
It was a little over a month ago when they met in Beijing.
In their latest summit, the two leaders agreed to strengthen their strategic cooperation,... but it's not yet clear how what role the North sees for China in the ongoing dialogue for denuclearization and peace.
Hong-yoo reports.
Strengthening strategic communication between Beijing and Pyongyang.
That was the main focus of the talks between the leaders of North Korea and China at their second summit earlier this week.

Using his private jet, North Korean leader Kim Jong-un flew to China's northeastern city of Dalian on Monday for a two-day trip -- only about 40 days after his first summit with President Xi in late March.
And at the summit talks,... the leaders of Pyongyang and Beijing saw eye-to-eye on the significance of North Korea-China ties amid the ongoing diplomatic turnaround on the Korean Peninsula.
Both leaders expressed hope to take their relations to the next level... and further strengthen their strategic communication.
President Xi highlighted Beijing's role.
He said China is paying great attention to the recent developments on the Peninsula and pouring constant efforts into ensuring regional peace and stability.

Views are divided as to why Kim Jong-un made the visit at this time.
Some say Pyongyang could be playing its 'Beijing card'... as some areas are proving difficult to iron out with the U.S. in denuclearization talks.
But others believe North Korea could be looking at the bigger picture... to seek a more balanced diplomacy between Washington and Beijing after the North Korea-U.S. talks.
While things have been rolling out at a rapid pace among the two Koreas and the U.S. -- it remains to be seen whether China will join the fray and complete a four-party structure.
Hong-yoo, Arirang News.