The Republic of San Marino — population 33,000, land area 61 square kilometers — signed the Artemis Accords on September 25, 2026, in a ceremony in Rimini, Italy. Minister of Industry and Technological Research Rossano Fabbri signed on behalf of the micro-state, with NASA Europe representative Gregory Mann and U.S. Consul General in Florence Joseph Tordella present. The Accords now count 76 signatories, up from the original 8 founding nations in 2020. NASA Deputy Administrator Matt Anderson framed the signing within President Trump's directive to build a Moon Base and establish a permanent lunar presence, noting that every signatory has been invited to participate in the return to the Moon through scientific payloads, technology demonstrations, and CubeSats. San Marino brings no launch capability, no space agency of note, and no meaningful R&D budget to the table. What it brings is a vote — one more flag in a coalition designed to establish norms for lunar activity before China's rival International Lunar Research Station program can set alternative rules. The Artemis Accords are not a treaty; they are a set of non-binding principles covering peaceful exploration, transparency, emergency assistance, scientific data sharing, non-interference, and preservation of historically significant sites. The real game is norm-setting at scale. The U.S. strategy treats each signatory as a node in a governance network that pre-commits nations to American-aligned rules for resource extraction, landing zones, and heritage site protection on the Moon and beyond. Whether San Marino ever sends hardware to lunar orbit is beside the point; its signature adds legitimacy to a framework competing with the Chinese-Russian alternative. Fabbri's statement emphasized "international cooperation" and "peaceful purposes" — language that maps directly onto the Accords' six core principles. The choice of Rimini, just outside San Marino's borders, for the ceremony underscores the diplomatic choreography: a U.S.-hosted event on Italian soil for a micro-state signing, with State Department and NASA officials providing the institutional weight. Six years into the Accords' existence, the coalition has grown roughly ninefold from its 8-nation founding. The pace of signings has accelerated, suggesting either genuine momentum or diminishing selectivity — or both. Each new signatory makes the framework harder to ignore in future multilateral negotiations over space governance, even if most signatories contribute symbolism rather than spacecraft. The structural question is whether a norm-setting regime built on breadth rather than depth can hold when actual resource disputes arise on the lunar surface. Seventy-six flags look impressive in a press release. Whether they translate into enforceable governance when two nations disagree over a water-ice deposit at the lunar south pole is the test the Accords have not yet faced.