The obligations referred to in paragraph 1 of this Article shall not apply if they undermine public security or impede the response to public health emergencies. The obligations referred to in paragraph 1 of this Article shall apply to the contracts of the armed forces only to the extent that their application does not cause any conflict with the nature and primary aim of the activities of the armed forces. The obligations shall not apply to contracts for the supply of military equipment as defined in Directive 2009/81/EC of the European Parliament and of the Council (
5
).