Case T-165/20: Judgment of the General Court of 13 July 2022 — JC v EUCAP Somalia (Arbitration clause — International contract staff of EUCAP Somalia — Common Foreign and Security Policy mission — Termination of a fixed-term contract during the trial period — Notification of termination of the contract by registered letter with a form for acknowledgment of receipt — Sent to an incomplete address — Starting point of the period for an internal appeal prior to court proceedings — Determination of the applicable law — Mandatory provisions of national employment law — Invalidity of the trial clause — Irregular notification of notice — Compensation in lieu of notice — Retroactive payment of remuneration — Counterclaim)