The summary is:
The video is about a trip to the border of Russia, China and North Korea in the Primorsky region. The narrator shows the Friendship Bridge, the House of Friendship, the checkpoint and the views of the neighboring countries. He also talks about the history, geography and tourism potential of the area. He mentions some interesting facts, such as the internet connection to North Korea, the Chinese desire to access the Sea of Japan and the Korean battles of 1938. He also announces a contest for his viewers and advertises a travel app. He ends by asking for likes, shares and subscriptions.
Here are the key facts extracted from the text:
1. Russia has a border with 18 different countries, but one of them is very short and unique: the border with North Korea in the Primorsky region.
2. The border of three countries (Russia, China and North Korea) meets at one point on the Foggy River, which is also the only thing that blocks China from direct access to Japan.
3. There is a bridge of friendship across the river that connects Russia and North Korea, which is the only physical connection between the two countries and where trains and internet cables run.
4. There is a house of Russian-Korean friendship near the bridge, which was built for meetings between the two delegations, but it burned down once and was rebuilt later.
5. There is a huge difference in the development of tourism and infrastructure on the Chinese and Russian sides of the border, with China having more attractions and facilities for visitors.
6. The Khasan battles were a series of clashes between the Soviet Red Army and the Japanese Imperial Army in 1938 near the border area.