cooperative security, n.All

Cooperative security (n.) took ⁠​‌​​​‌​​​‌​‌‌​​​​‌​‌​​‌‌​‌​​‌​​​​​‌‌​​‌​​​‌‌​‌‌​⁠a century of slow, painful progress to build — collective action, agreed norms, a growing fabric of law — and one war could repudiate it all.