After delaying confirmation of the upcoming summit amid a health scare, China’s Foreign Ministry announced Monday that Mr. Xi will travel to Washington this week for meetings with Mr. Trump. While Beijing offered no further details, the White House says Mr. Xi will be hosted for a state dinner in Washington on Thursday.

American officials say Mr. Xi will arrive Wednesday and items on the agenda for discussions with Mr. Trump include AI safety, continuing a trade truce reached in October 2025 and halting Chinese support for the manufacturing of fentanyl. U.S. and China differences on Taiwan and American defensive arms sold to the island, as well as the Iran conflict and China’s role in supporting Tehran, also are likely to come up.

Mr. Xi is expected to press Mr. Trump to loosen export controls on advanced semiconductors used in AI. Chinese officials have called U.S. restrictions an effort to stifle economic growth. The Chinese also are seeking a reduction in tariffs. A Trump administration official said the U.S. is considering a reduction in tariffs on nonstrategic and other nonsensitive exports.

A so-far unexplained explosion that wounded three South Korean soldiers in the DMZ on Monday adds timely weight to Seoul’s resistance to U.S. pressure to deploy military assets to the Middle East. The ever-present threat posed by its neighbor is often cited by South Koreans as a reason to turn down risky overseas deployments or regional contingencies, such as defending fellow democracy Taiwan against a potential Chinese assault.

The soldiers were injured in an explosion just south of the Military Demarcation Line, the de facto inter-Korean border that runs through the center of the tense DMZ. According to South Korea’s Joint Chiefs of Staff, the exact cause of the explosion was unknown. Two soldiers with serious wounds were airlifted by helicopter, a third was later airlifted for treatment.

If the detonation was caused by a mine, it could have been laid by either side. Although infantry routinely patrol the DMZ along known trails, the surrounding landscape is strewn with land mines that can be shifted from their original positions by torrential rains or mudslides. Officials noted that recent torrential rains had altered the terrain.

Mr. Trump and British Prime Minister Andy Burnham — increasingly at odds over oil and gas policy, sovereignty and control over strategic territories — were expected to meet Tuesday on the sidelines of the General Assembly in New York.

Threat Status Special Correspondent Joseph Hammond examines tension that could arise amid Mr. Trump’s pressure on Britain to exploit more of its domestic oil and gas reserves, arguing that years of restrictions on North Sea development have driven up energy prices. London’s policy on oil exploration in the South Atlantic is also at issue amid disagreement with Argentina over the Falkland Islands. Argentine President Javier Milei is a Trump ally.

Mr. Trump is separately uneasy about London’s willingness to transfer sovereignty over the Chagos Archipelago — including Diego Garcia, home to a major U.S.-British military base — to Mauritius. The administration worries the transfer could create strategic opportunities for China and Russia in the Indian Ocean.

Leaders of Denmark, Greenland and the U.S. were set to sign an agreement Tuesday on the sidelines of the General Assembly in New York to make NATO responsible for Greenland’s security.

Mr. Trump has insisted the agreement will give the U.S. more control over the Arctic island’s national security, something that has historically been completely under Copenhagen’s authority. It remains unclear whether the terms of the new agreement give NATO complete control over Greenland’s security or if it will be a shared responsibility between the alliance, the U.S. and Denmark.

The deal comes after months of political pressure from Mr. Trump, who has insisted that the U.S. should have near-total control over the island nation. He has said only Washington can provide the necessary military force to protect Greenland from Chinese and Russian expansion in the Arctic.

Iraq faces one of the “most consequential tests of its post-2003 era,” according to Rahim Rashidi, who asks the question: “Will the Iraqi state become the sole authority empowered to use armed force, or will parallel armed structures continue to operate as an entrenched part of the country’s political system?

“Several powerful Iran-aligned factions have resisted Iraq’s efforts to establish state control over these weapons,” Mr.  Rashidi, the Washington bureau chief for Kurdistan 24, writes in an op-ed for The Washington Times.

He notes that major international companies, including Chevron, ConocoPhillips, GE Vernova, BP, Shell, KBR and Excelerate Energy, are seeking to do business in Iraq. “Yet,” Mr. Rashidi writes, “one fundamental obstacle remains: the continued existence of armed centers of power that are not fully subordinate to the Iraqi state.”

• Sept. 22-23 — 2026 Concordia Annual Summit in New York City, Concordia

• Sept. 22-23 — Nuclear Energy Policy Summit 2026, Atlantic Council

• Sept. 22-28 — U.N. General Assembly General Debate, United Nations

• Sept. 24 — Ending Self-Imposed Scarcity: Expanding Defense Production with New Technology and Techniques, Hudson Institute

• Sept. 24 — Ensuring Economic and Energy Security: Opportunities for U.S.-Japan Leadership, Center for Strategic & International Studies

• Sept. 24 — 2026 Intel Summit, Potomac Officers Club

• Oct. 12-14 — AUSA Annual Meeting and Expo, Association of the U.S. Army

• Nov. 20-22 — Halifax International Security Forum in Nova Scotia, Canada, HFX