While the world watches naval warships patrol the Strait of Hormuz, a new generation of strategists is asking a different question: what happens when the chokepoint is 384,400 kilometers away? A Space.com investigation published April 28, 2026, surveying defense analysts and space policy researchers, found broad agreement that cislunar space is on a trajectory to become exactly that kind of strategic pressure point. The timing of the analysis is no coincidence. The US-Iran naval standoff in the Persian Gulf has injected fresh urgency into the debate. Shipping through Hormuz dropped as much as 70 percent at peak tension, oil insurance costs spiked, and the global market was reminded how much physical geography still controls economic fate. The researchers asking about cislunar space see an uncomfortable parallel forming in orbit. AI-generated image The Strait of Hormuz analogy: Earth's maritime chokepoints and the emerging cislunar transit corridor share more strategic logic than most space policymakers acknowledge. Credit: AI-generated Why Experts Are Drawing the Hormuz Comparison The Strait of Hormuz works as a chokepoint for a specific reason: geography constrains movement. Tankers carrying roughly 20 percent of global oil have no alternative route that is remotely cost-competitive. Control the strait, and you control the leverage. Cislunar space has an analogue constraint, though it is orbital mechanics rather than coastlines that creates it. Getting to the Moon is not a matter of pointing a rocket at it and firing. The most fuel-efficient paths from Earth to lunar orbit pass through a specific region of cislunar space, and the gravitational geometry of the Earth-Moon system concentrates viable parking spots into a handful of locations. The five Lagrange points are the most prominent of these. They are positions where Earth and Moon gravity balance, allowing spacecraft to station with minimal propellant expenditure. Earth-Moon L1, sitting roughly 58,000 kilometers above the lunar surface between Earth and Moon, lies directly on the most common transit corridors. L2, just behind the Moon, anchors the far-side communications window. A hostile actor with assets at either point would not need to intercept every spacecraft. The threat of interception, the ability to surveil and deny, changes how any nation or company calculates risk before committing billions to a lunar venture. The Strategic Logic Naval strategists use the term "sea control" to describe the ability to use an ocean area while denying it to adversaries. Space strategists are beginning to formalize the equivalent concept for cislunar space. No treaty currently prohibits placing dual-use assets at Lagrange points, and the Outer Space Treaty of 1967 does not explicitly define what constitutes orbital denial. AI-generated image The five Earth-Moon Lagrange points, particularly L1 and L2, sit along the most fuel-efficient transit corridors to the lunar surface. Credit: AI-generated Why the Concern Is Sharpening in 2026 The conversation is not new. Defense analysts have raised cislunar access risks since at least 2019. What changed is the operational reality on the ground, or more precisely, in orbit. Artemis II completed its crewed lunar flyby in early April 2026, and on April 28, the Artemis III SLS core stage entered the Vehicle Assembly Building at Kennedy Space Center, officially starting the ground campaign for the first crewed lunar landing attempt. China's CZ-10B rolled to its launch pad this week with Mengzhou and a booster-catch attempt on the schedule. Four commercial landers are targeting the Moon before the end of 2026 under NASA's CLPS program. Blue Moon Endurance passed thermal-vacuum testing. ispace signed a data center feasibility study with Shimizu Corporation. In short, cislunar space went from theoretical to operational during a period when US-China geopolitical tensions have not relaxed. Every new spacecraft in the Earth-Moon system raises the economic stakes of access denial and lowers the threshold at which interference becomes strategically tempting. 384,400 km Earth-Moon distance 58,000 km from Moon to L1 point 5 Lagrange parking points 20% Global oil via Hormuz 4 CLPS landers targeting Moon 2026 27B Projected lunar economy by 2050 How a Cislunar Blockade Could Actually Work Blocking the Strait of Hormuz requires ships, mines, and political will. Blocking cislunar access requires a different toolkit, but the core logic is similar: raise the cost and risk of transit to the point that the economic or strategic calculus reverses. One mechanism analysts focus on is debris generation at transit corridors . A single antisatellite test or deliberate fragmentation event in a critical orbital regime can render that corridor hazardous for years. Unlike a naval blockade, the perpetrator doesn't need to maintain a continuous presence. The debris field does the work indefinitely. A second mechanism is electronic warfare and jamming . Spacecraft transiting cislunar space depend on precise navigation, communications relay, and command uplinks. Disrupting those signals doesn't destroy hardware, but it can force mission abort or cause trajectory errors that compound over multi-day transit times. The ambiguity of electronic interference also creates diplomatic cover that kinetic action does not. The third mechanism is the most straightforward: positioning surveillance and intercept-capable assets at the gravitationally stable Lagrange points. A nation that parks assets at L1 and L2 can monitor all traffic passing through the most efficient Earth-Moon corridors, and could credibly threaten interception on demand. The threat alone changes behavior without requiring a single shot. Three Vectors of Cislunar Denial • Debris Generation: Deliberate fragmentation at transit corridors creates persistent hazards without requiring ongoing presence. • Electronic Warfare: Navigation jamming and communications disruption can force mission abort with high deniability. • Lagrange Point Positioning: Surveillance and intercept assets at L1/L2 can monitor and threaten all major transit routes to the Moon. AI-generated image Military-grade surveillance satellites positioned along cislunar transit routes could monitor and threaten access without requiring active conflict. Credit: AI-generated The Race Is Already On The United States is not waiting for a formal cislunar doctrine before taking action. The Space Force's dedicated cislunar acquisition task force, stood up in April 2026, is specifically designed to procure sensors and systems that extend military situational awareness beyond geosynchronous orbit. The GBOSS telescope upgrade at Maui, accepted into operations last month, is the first purpose-built deep-space surveillance asset to reach full operational capability. Anduril's acquisition of ExoAnalytic Solutions brought 400 ground-based telescopes under a single defense contractor umbrella. The declared purpose is tracking: knowing where all cislunar objects are, at all times. Tracking is the prerequisite for everything else. China is pursuing a parallel path. The CZ-10B and Mengzhou program is not just a Moon race milestone. China's planned International Lunar Research Station at Shackleton Crater includes communications infrastructure, navigation beacons, and logistics facilities that would give it persistent presence at the lunar south pole. A nation with permanent infrastructure at the lunar south pole, the most strategically important real estate on the Moon for water ice and energy access, does not need to blockade the Earth-Moon corridor to exercise leverage. It simply needs to be there first. Actor Cislunar Asset / Program Status (April 2026) US Space Force GBOSS deep-space telescope, Cislunar Acquisition Task Force Operational / Active Anduril / ExoAnalytic 400-telescope cislunar tracking network Acquisition completed NASA / ESA LunaNet navigation/comms relay constellation Architecture d