What is the DMZ?

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The Demilitarised Zone, where US President Donald Trump met North Korean leader Kim Jong Un on Sunday during an encounter that included a brief crossing of the border, may be the most heavily fortified strip of land in the world and serves as an uneasy and occasionally bloody borderline between the two Koreas.

However, there is not much demilitarised about it: A minefield laced with barbed wire, it is guarded by combat-ready troops on both sides and has been the site of numerous, sometimes deadly gun battles and skirmishes.

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Hikers and journalists walk along the DMZ Peace Trail in Goseong, South Korea (Ahn Young-joon/AP)

Mr Kim accepted Mr Trump’s offer for a cross-border handshake, the most likely spot inside the DMZ where the two can meet is the Korean border village of Panmunjom and the US leader briefly stepped into the North’s territory, becoming the first president to do so.

Last year, Mr Kim stepped over into the southern side of Panmunjom for a summit with South Korean President Moon Jae-in, becoming the first North Korean leader to set foot on South Korean land.

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North Korean leader Kim Jong Un prepares to shake hands with South Korean President Moon Jae-in over the military demarcation line in the border village of Panmunjom (Korea Summit Press Pool/AP)

Origin of the DMZ

The DMZ, which runs across the Korean Peninsula, is 154 miles (248km) long and 2.5 miles (4km) wide. 

It was created as a buffer at the end of the 1950-53 Korean War, and is jointly overseen by the American-led UN Command and North Korea.

Hundreds of thousands of North and South Korean troops are now deployed along the DMZ, which is littered with an estimated two million mines, tank traps, razor wire fences and guard posts.

It is extremely rare for anyone to cross the DMZ in unauthorised areas.

More than 30,000 North Koreans have escaped to South Korea for political and economic reasons since the war’s end, but mostly via the North’s long, porous border with China.

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North Korean soldiers attack UN Command personnel at the truce village of Panmunjom (Yonhap/AP)

As relations improved last year, Mr Kim and Mr Moon agreed on several deals aimed at reducing animosity at the border.

They removed mines from certain areas, dismantled some of their guard posts and halted frontline live-fire exercises.

Experts say tensions could easily return if diplomacy eventually fails to end the North Korean nuclear stalemate.


If Mr Trump is going to meet Mr Kim inside the DMZ, Panmunjom is the most likely place.

It has been the venue for past high-level talks; it is somewhat safer than other areas, and it is just an hour’s drive from Seoul, where Mr Trump will meet Mr Moon.

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US President George W Bush visits Observation Point Ouellette in the DMZ (J Scott Applewhite/AP)

North and South Korean troops stand just yards away from each other there.

They once carried pistols, but since last year’s deals they are not armed.

Panmunjom is also where an armistice was signed to stop the Korean War. That armistice has yet to be replaced with a peace treaty, leaving the Korean Peninsula in a technical state of war.

About 28,500 American troops are still stationed in South Korea.

Panmunjom is 32 miles (52m) north of Seoul and 91 miles (147km) south of Pyongyang.

Since the armistice, more than 830 rounds of talks have been held in various Panmunjom conference rooms.

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US President Bill Clinton takes the lens caps off a pair of binoculars at Camp Casey in the Demilitarised Zone (Greg Gibson/AP)

Mr Kim then took Mr Moon’s hand and led him back across the borderline into the North, where they posed for a photo together before returning to the South for a summit.

Before that, the most famous incident at Panmunjom happened in 1976, when axe-wielding North Korean soldiers killed two US officers sent out to trim a tree that was obstructing the view from a checkpoint.

Washington sent nuclear-capable bombers toward the DMZ in response.

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Smoke from an explosion rises as part of the dismantling of a South Korean guard post in the DMZ in Cheorwon in November 2018 (Jung Yeon-je/AP)

In 2017, North Korean soldiers sprayed bullets at a colleague who was making a dash for the border. He survived and now lives in South Korea.

Past presidential visits

In 1993, President Bill Clinton visited Panmunjom when the North Korean nuclear crisis first flared.

In 2002, President George W Bush visited the DMZ a few weeks after he labelled North Korea part of an “axis of evil”.

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US President Barack Obama, second left, looks through binoculars to see North Korea from Observation Post Ouellette in the Demilitarised Zone in March 2012 (Susan Walsh/AP)

He gave the troops rifles and machine guns as souvenirs and ordered them to maintain “maximum alertness”, according to state media.

Days after Mr Kim’s Panmunjom trip and ahead of a planned North Korean long-range rocket launch, President Barack Obama visited a frontline US military camp just south of the DMZ and told American troops they are protectors of “freedom’s frontier”.

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President Donald Trump views North Korea from the Korean Demilitarised Zone from Observation Post Ouellette (Susan Walsh/AP)

On Sunday he put that right and said it felt great to be the first US leader to cross into Pyongyang’s territory.

Before greeting Mr Kim, he had been shown the landscape from Observation Post Ouellette.

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