South Korea

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South Korea's Constitutional Court on April 4 issued an 8-0 verdict to uphold the impeachment of President Yoon Suk Yeol over his abortive Dec. 3-4 martial law bid.

South Korea: President Yoon's Impeachment Upheld, New Election Impending

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China

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Economics

On April 3, Northeast Asian countries responded to U.S. baseline and reciprocal tariffs imposed on April 2.

Asia-Pacific: China Aside, Northeast Asian Countries Likely To Avoid Retaliating Against U.S. Tariffs

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South Korea’s Constitutional Court announced that it would make a final decision on the impeachment case against President Yoon Suk Yeol on April 4, with the decision due to be broadcast live, the Korean Broadcasting System reported on April 1.

South Korea: Court Decision on Yoon's Impeachment Due April 4, Police Prepare 

South Korea's Acting President Han Duck-soo said in a meeting with business lobbyists that the government would "draw up response strategies" and "focus on providing tailored support" in light of the "current trade war" with the United States, the Financial Times reported March 27. 

South Korea, Japan, Taiwan: U.S. Partners Scramble to Respond to Auto Tariffs

South Korea's Oceans Minister Kang Do-hyung announced that the country had installed a floating platform in waters disputed with China in the Yellow Sea (which Seoul calls the West Sea), in response to China's recent installation of a steel structure in the same area, Reuters reported on March 26. 

China, South Korea, Japan: Maritime Spats Threaten Beijing's Diplomatic Window To Capitalize on Trump Tariffs

The Seoul High Court acquitted Lee Jae-myung, head of the main opposition Democratic Party, of charges of violating the election law by lying on the campaign trail in 2022, Yonhap News Agency reported on March 26. 

South Korea: Opposition Leader Acquitted, Clearing Way for Presidential Bid

South Korea's main opposition Democratic Party led five opposition parties in proposing an impeachment bill against acting President Choi Sang-mok over his failure to appoint all three National Assembly-nominated justices to the Constitutional Court, KBS reported on March 21.

South Korea: Opposition Seeks To Impeach Yet Another Acting President

The foreign ministers of China, Japan and South Korea will meet in Tokyo, Japan, on March 22, marking the first such trilateral talks since 2023, Reuters reported on March 18. 

China, Japan, South Korea: Foreign Ministers To Meet for First Time Since 2023

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People wave flags and chant slogans during a protest in front of the municipality headquarters in support of arrested Istanbul Mayor Ekrem Imamoglu on March 19, 2025, in Istanbul, Turkey. 

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A look at what the coming week will bring -- and a list of recommended RANE articles from the week that was.

The Weekly Rundown: U.S. To Announce Tariffs, Protests in Turkey Rage On

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Canadian flags are seen outside a building in Ottawa. 

The Weekly Rundown: Canada's Ruling Liberals Pick a New Leader, India and the EU Hold Trade Talks 

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The Reichstag on Jan. 22 in Berlin. The center-right alliance between the Christian Democratic Union and its Bavarian sister party, the Christian Social Union, is widely expected to emerge as the largest bloc in the Bundestag after the Feb. 23 general election and lead the next coalition government.

Russia-Ukraine Conflict

The Weekly Rundown: German Elections, Macron and Starmer Meet Trump

South Korean President Yoon Suk Yeol (second from right) attends the fifth hearing of his impeachment trial over his short-lived imposition of martial law at the Constitutional Court in Seoul on Feb. 4, 2025.

South Korea’s top court will likely uphold Yoon’s impeachment, clearing the way for a more progressive government. But the alternate scenario in which Yoon remains in office and fuels more protests and political instability cannot be ruled out. 

In South Korea, Yoon's Ouster Will Resolve Political Instability -- For Now

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Essential Geopolitics: Key Events in South Korean Politics, Part I

Essential Geopolitics: Key Events in South Korean Politics, Part II

People Power Party lawmakers (bottom) argue with National Assembly Speaker Woo Won-shik (top) during the plenary session for the impeachment vote of acting president Han Duck-soo on Dec. 27, 2024, at the National Assembly in Seoul, South Korea. Meaningful constitutional reform in South Korea remains unlikely, while instability will limit regional security engagement, risk political fragmentation and impede policymaking.

Meaningful constitutional reform remains unlikely, while instability will limit regional security engagement, risk political fragmentation and impede policymaking.

Yoon's Impeachment Drama Reopens the Fraught Issue of Constitutional Reform

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U.S. President Joe Biden gestures to reporters after landing on the South Lawn of the White House on Sept. 22, 2024, in Washington, D.C. 

U.S.-China Relations

Trump's more aggressive and transactional approach could deliver quick wins for the U.S.'s position in the region, though it could also strain ties with key partners. 

Trump's Asia-Pacific Approach Will Test Biden's Gains

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Security personnel walk on a road with buses blocking an entrance gate to protect impeached South Korean President Yoon Suk Yeol from a possible second arrest in Seoul on Jan. 6. If Yoon is not arrested, the opposition could again seek to impeach the country's acting president due to his insufficient support for the arrest efforts, worsening foreign perceptions of political instability in South Korea.

The Weekly Rundown: Mozambique's President Takes Office, the U.K. Chancellor Visits China

How do demographic trends impact military power?

Applied Geopolitics: Demographic Decline and Military Manpower: Understanding the Shifting Role of Troops in Conflict

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Venezuela's President Nicolas Maduro waits for the arrival of other heads of state of members of the Bolivarian Alliance for the Peoples of Our America regional trading bloc during the XXIV ALBA-TCP Summit in Caracas, Venezuela, on Dec. 14, 2024. 

The Weekly Rundown: Inaugurations in Ghana and Venezuela, Yoon's Potential Arrest in South Korea

South Korean President Yoon Suk Yeol speaks during a news broadcast on a television at a train station in Seoul on Dec. 3, 2024, after Yoon declared emergency martial law.

Despite lawmakers voting to impeach the president, there is still ample room for more political tumult in the months ahead, keeping South Korea's economic and foreign policy trajectory in limbo.

Yoon's Impeachment Opens a New Chapter in South Korea's Saga of Political Instability

The Republic of Korea, also called South Korea, occupies the southern half of a peninsula that juts out of the Asian mainland toward Japan. The country shares its only land border with North Korea, which it also borders in the Yellow and East seas. It shares maritime borders with Japan to the east and China to the west. South Koreas primary geographic challenges are overcoming internal fractures to maintain cohesion, and securing its maritime sphere and its southwest lowland pockets from its more powerful neighbors.    The ancient kingdoms of Baekje and Silla occupied the distinct geographic pockets of the southern peninsula, standing in contrast to a more unified space where North Korea now sits. The Taebaek mountains run along much of South Korea's eastern coast, largely protecting the country from invasion by sea from this direction. These mountain ranges provide a level of protection to the peninsula's most vulnerable feature: a north-south corridor of lowlands and hills along the west coast. This coast (as well as much of South Korea's southern coastline) is protected from easy landing by countless islands, mudflats and tidal rips.     However, the Nakdong River valley at Pusan offers a point of incursion to would-be invaders. From here, they can pass over the lower elevations of the Sobaek Mountains and onward to the western core. This has been the gateway for those seeking to control the peninsula, from the failed 16th century invasions of Japanese Daimyō Toyotomi Hideyoshi to the Japanese empire's later efforts in the 19th century. A North Korean invasion in 1950 (repelled by U.N. forces defending the Pusan Perimeter) highlights another key vulnerability for South Korea: the potential for incursions from the north via the western coastal strip. To hedge against aggression from all directions, South Korea is focused on securing its maritime space, particularly in the south and west. The country has prioritized its possession of Jeju Island in the Jeju Strait and has in the past held claims to Tsushima Island. Disputes with China over the Socotra Rock in the Yellow Sea and with Japan over Dokdo in the East Sea are also important elements of South Korea's overall maritime strategy.     The Korean Peninsula's historic policy of isolation was one way of remaining out of the crosshairs of its neighbors, but it has also aligned itself with rival powers throughout its history. Most recently, South Korea has used a third party — the United States — to maintain balance against neighbors that threaten it from sea and land. 

SITUATION REPORTS

South Korea: President Yoon's Impeachment Upheld, New Election Impending

Asia-Pacific: China Aside, Northeast Asian Countries Likely To Avoid Retaliating Against U.S. Tariffs

South Korea: Court Decision on Yoon's Impeachment Due April 4, Police Prepare

South Korea, Japan, Taiwan: U.S. Partners Scramble to Respond to Auto Tariffs

China, South Korea, Japan: Maritime Spats Threaten Beijing's Diplomatic Window To Capitalize on Trump Tariffs

South Korea: Opposition Leader Acquitted, Clearing Way for Presidential Bid

South Korea: Opposition Seeks To Impeach Yet Another Acting President

China, Japan, South Korea: Foreign Ministers To Meet for First Time Since 2023

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