++++ 1 . COMMUNITY LAW - PRINCIPLES - FORCE MAJEURE - CONCEPT 2 . AGRICULTURE - COMMON ORGANIZATION OF THE MARKETS - EXPORT LICENCES - SYSTEM OF SECURITIES - NON-PERFORMANCE OF AN EXPORT SALE CONTRACT ATTRIBUTABLE TO THE PURCHASER - FORFEITURE OF THE SECURITY - NOT CASE OF FORCE MAJEURE ( COMMISSION REGULATION NO 3183/80, ARTS 36 AND 37 )