While the issue of establishing a missile defence capability in the Euro-Atlantic area was excluded from eu security debates, and left to bidding contests between Washington and some European capitals, it was nevertheless endorsed at the nato Lisbon Summit in November 2010. This course of action might come as a surprise in the light of the few cases of missile defence operational implementation in the United States. It might also raise questions about the technology architecture and the command. This article however provides an approach of missile defence as a technique of governance through the instruments, launched by the United States in the perspective of building technical alliances on the global scale.