In Liverpool this week, the prime ministers of Britain and Canada met for the first time as heads of government, confronting two of the defining uncertainties of this era: how democratic societies govern artificial intelligence, and how allied militaries finance and coordinate their defence. Neither country has yet answered the first question with law, and the second is complicated by Canada's quiet pivot toward Europe amid fraying ties with the United States. What the meeting revealed, beneath its cordial surface, is how much foundational work remains undone in the architecture of Western coo