...face of a U.S. Article 51 self-defense claim insofar as Yemen is
unable or
unwilling to use its authority to address the threat posed by AQAP itself. So long as one accepts that such
unable/
unwilling arguments can be made, the Yemen scenario seems like a very plausible place to invoke it. If that’s right, then DOD would not face an Article 2(4) hurdle in acting without Yemen’s consent. Could it be that there are facts available internally that make the
unable/
unwilling argument implausible as to Yemen after all? I’m skeptical....