Treaties — Suspension — Circumstances in which unilateral suspension of bilateral treaty possible — Rebus sic stantibus — Whether suspension to be regarded as an acte de gouvernement — Conditions for validity of suspension — Whether determination a matter for courts or Executive — Whether notification by Minister for Foreign Affairs sufficient

States — Conduct of foreign relations — Notification of suspension of bilateral treaty — Competent State organ — Whether Minister for Foreign Affairs competent to notify suspension — The law of France