++++ 1. Social security for migrant workers - Invalidity insurance - Award of benefit - Migrant worker residing in the State of employment at the time of the incapacity for work followed by invalidity - Entitlement to benefit in the State of last employment (Council Regulation No 1408/71, Art. 39(1) and (5) and Art. 71(1)(b)(ii)) 2. Social security for migrant workers - Introduction and processing of claims for benefits - Claim for invalidity benefit made to the institution of the State of residence - Obligation to ensure that the claim is forwarded to the institution of the competent State - Whether obligation on the institution of the State of residence to pay invalidity benefit to the claimant - No such obligation (Council Regulation No 1408/71, Art. 86; Council Regulation No 574/72, Art. 35)