The Republic of Korea Navy’s submarine ROKS Dosan Ahn Changho arrived at CFB Esquimalt, British Columbia, on May 23 after a roughly 14,000-kilometre trans-Pacific voyage that included stops in Guam and Hawaii. The visit — the first Pacific crossing by a South Korean submarine — is being used as both a demonstration of long-range endurance and for joint exercises with the Royal Canadian Navy as Ottawa nears a decision on its Canadian Patrol Submarine Project. Canada has shortlisted South Korea’s Hanwha (partnered with HD Hyundai) and Germany’s ThyssenKrupp Marine Systems (TKMS) to build up to 12 diesel-electric boats to replace aging Victoria-class submarines; the program is estimated at roughly $40 billion and a preferred bidder is expected this summer. Two Canadian submariners joined the Korean crew for part of the voyage and Canadian navy officials stressed urgent crew expansion and training needs as they plan for a larger, modern fleet. Competing bids include industrial benefit packages and promises of Canadian production, maintenance hubs and jobs if selected.

On May 23, 2026, U.S. Marines flew two MV-22B Osprey tiltrotor aircraft into Caracas for a rapid-response and embassy reinforcement drill at the recently reopened U.S. Embassy. The aircraft, identified with markings of Marine Medium Tiltrotor Squadron 263 (VMM-263), landed in the embassy parking area and inserted forces as part of an evacuation and emergency-response scenario. U.S. Southern Command chief Marine Gen. Francis L. Donovan observed the exercise in person. Venezuelan authorities had authorised the drill as preparation for medical or catastrophic emergencies; the U.S. embassy said ensuring rapid response capability is central to mission readiness. The exercise follows the U.S. reopening of its Caracas mission nearly two months earlier after the ouster of Nicolás Maduro in January and comes after a Jan. 3 operation that resulted in Maduro and his wife being taken to the United States on drug-charges, which they have pleaded not guilty to. Some Caracas residents watched the visible demonstration while a smaller group protested with a banner reading “No to the Yankee drill.” Reports indicate the operation was supported by U.S. naval forces operating offshore.

Poland has taken delivery of its first three Lockheed Martin F-35A Lightning II jets, flown into the 32nd Tactical Air Base at Łask on May 22, 2026, marking the start of a 32-aircraft acquisition agreed with the United States. The arrival — supported en route by a U.S. KC-46A tanker — begins a delivery programme running through to 2030 that includes a comprehensive logistics and training package intended to embed fifth‑generation capabilities into the Polish Air Force. Warsaw has bought missiles and sensors to arm the jets, including AIM‑9X Block II and AIM‑120D‑3 air‑to‑air weapons, AGM‑158B‑2 JASSM‑ER standoff munitions and AGM‑88G AARGM‑ER anti‑radiation missiles. Defence Minister Władysław Kosiniak‑Kamysz and senior military officials attended the welcome ceremony. The F‑35s bring stealth, advanced sensor fusion, AESA radar and networked strike and intelligence capabilities to NATO’s eastern flank, replacing older Soviet‑era MiG‑29s and enhancing Poland’s ability to conduct air superiority, precision attack and intelligence missions in contested environments.

Three Indian Army personnel, including Major General Sachin Mehta, survived a Cheetah light helicopter crash in the Tangtse sector near Leh on May 20, Indian officials confirmed on May 23. The single-engine chopper, used for high-altitude logistics and reconnaissance, went down during a routine flight; all three occupants sustained minor injuries. The army has ordered a Court of Inquiry to establish technical, mechanical or environmental causes. A post-crash selfie taken by Mehta circulated widely on social media. The incident has revived scrutiny of the ageing Cheetah/Cheetal fleet, in service since the 1970s, even as the Army plans phased replacement with Hindustan Aeronautics Limited’s Light Utility Helicopters (LUH) under its modernisation programme. The service also warned against misinformation after unrelated viral footage was circulated in parallel with coverage of the crash.

India's Union Home Minister Amit Shah announced on May 22, 2026, that the government will roll out a technology-driven “Smart Border” project within the next year to harden roughly 6,000 km of frontiers with Pakistan and Bangladesh. Speaking at the Border Security Force's Rustamji memorial event, Shah said the programme will deploy drones, radars, advanced cameras and other surveillance systems to create an “impenetrable” security grid aimed at stopping infiltration, smuggling of narcotics, weapons and fake currency, and what he called attempts to change local demography. He pledged to find and expel “every single infiltrator” and said a previously announced high‑powered demography mission will be finalised soon. The government also plans a major welfare package for Central Armed Police Force personnel and more intensive coordination with state governments and local administrations in border states such as Tripura, Assam and West Bengal. Shah referenced recent cross‑border incidents and asserted the government’s willingness to take strong action, while promising a year‑long timeline tied to the BSF’s diamond jubilee.