Maritime Corridors & Chokepoints — July 2026

The defining pattern of July 2026 is the deliberate stacking of coercive instruments across multiple chokepoints within a compressed timeframe. On 6 July, a PLAN Type 094 SSBN launched what is described as China's first publicly acknowledged full-range SLBM test from the South China Sea bastion, with the missile impacting near 174°E 6°S in the South Pacific; two NOTAMs bracketed the launch corridor. That same day, the China-Russia Joint Sea-2026 exercise launched at Qingdao, involving surface warships, submarines, and support units, with some forces subsequently conducting joint Pacific patrols. On 19 July, PLAN Type 052D destroyer CNS Kaifeng conducted a live-fire exercise within Japan's claimed EEZ in the Philippine Sea while operating as part of a PLAN-Russia joint surface action group. These three events — an SSBN test, a bilateral naval exercise, and a live-fire drill inside a partner's claimed EEZ — are not isolated incidents; they constitute a sequenced demonstration spanning the South China Sea bastion, the Philippine Sea approach, and the Luzon Strait corridor simultaneously.

At the sub-strategic level, the Second Thomas Shoal and Scarborough Shoal incidents reveal an intensifying CCG enforcement posture that has now crossed into direct physical violence. On 20 July, CCG vessel 21560 — which had been stationed inside Second Thomas Shoal for nearly a week — launched an inflatable boat that rammed a Philippine Navy RHIB; personnel exchanged blows with wooden batons and oars, two PN personnel were injured, and one sustained a serious head injury requiring medical evacuation, disrupting the resupply mission to BRP Sierra Madre. At Scarborough Shoal, AMTI AIS analysis documents 933 CCG ship-days in H1 2026 — nearly matching the full-year 2025 total of 1,099 ship-days — with 6–8 maritime militia vessels maintaining near-continuous inner presence and 112 documented CCG-PCG encounters recorded in H1 2026 alone. On 24 July, CCG vessel 21581 came within approximately 7 metres of BFAR vessel BRP Datu Paduhinog and fired water cannon three times, with 12 CCG vessels and 3 maritime militia vessels involved in the operation. The provisional understanding reached in July 2024 is, on this evidence, no longer operative.

The allied and partner response has been substantial but has not yet re-established deterrence at the friction points. USS George Washington (CVN-73) transited the Luzon Strait westbound on 22 July in direct response to the 20 July clash, entering the South China Sea with CVW-5 — including F-35C and EA-18G Growler squadrons — cruiser USS Robert Smalls, and destroyers USS Benfold and USS Shoup, announced publicly by US 7th Fleet. The 17th Multilateral Maritime Cooperative Activity ran 21–25 July in the Philippine EEZ, involving warships, coast guard vessels, and aircraft from the Philippines, US, and Japan, including LCS USS Santa Barbara, PCG BRP Malabrigo, JMSDF JS Yudachi, and Philippine frigate BRP Antonio Luna. In the Indian Ocean, India's Operation Urja Suraksha maintained more than five frontline warships in the Gulf of Oman escorting energy cargo through the Strait of Hormuz, Indian Navy P-8I aircraft assumed Deputy Commander Task Force for Theatre-level ASW at RIMPAC 2026 for the first time, and India received MH-60R deliveries bringing its fleet to 21 of 24 contracted units. India's expanding SSBN fleet — with three Arihant-class boats now active following INS Aridhaman's April 2026 commissioning — is under active CASD posture debate. Collectively, these allied actions demonstrate resolve and interoperability but are occurring reactively against a Chinese operational tempo that is setting the pace across all three corridor systems.