Kuwait Court of Cassation principle number 2286

A contract is to be performed in accordance with its contents and consistently with good faith and honourable dealing. - Reciprocal obligations in a contract binding on both parties. Due for performance at the same time. The effect thereof. Each contracting party may refrain from performing his obligation if the other contracting party refrains, unless otherwise agreed or custom dictates otherwise. - The defence of non-performance. Its nature and scope. - The debtor's non-performance of his contractual obligation. A fault giving rise to his liability unless he proves that non-performance is attributable to force majeure, an extraneous cause, or the other contracting party's fault.