(2) Should it prove necessary to take measures to preserve cultural property situated in occupied territory and damaged by military operations, and should the competent national authorities be unable to take such measures, the Occupying Power shall, as far as possible, and in close co-operation with such authorities, take the most necessary measures of preservation. (3) Any High Contracting Party whose government is considered their legitimate government by members of a resistance movement, shall, if possible, draw their attention to the obligation to comply with those provisions of the Conventions dealing with respect for cultural property.' The Hague Convention establishes a 'special protection' regime, which obliges States Parties to ensure the immunity of cultural property under special protection from acts of hostility (Articles 8 and 9). Under Article 8, this protection may be granted to one of three categories of cultural property: (1) refuges intended to shelter movable cultural property in the event of armed conflict; (2) centers containing monuments; and (3) other immovable cultural property of very great importance. To receive special protection, cultural property must also be located an adequate distance from an industrial center or location which would render it vulnerable to attack, and must not be used for military purposes. The First Protocol was adopted at the same time as the Hague Convention, on 14 May 1954. It specifically applies to movable cultural property only, and prohibits the export of movable property from occupied territory and also requires its return to its original territory at the conclusion of hostilities (Article 1). States Parties under the obligation to prevent the export of such property may be required to pay an indemnity to States whose property was removed during hostilities. Criminal acts committed against cultural property in the late 1980s and the beginning of the 1990s highlighted the deficiencies in the implementation of the Hague Convention and its First Protocol. As a result of the 'Boylan review' (a review of the Convention led by Professor Patrick Boylan), the Second Protocol to the Hague Convention was adopted at a Diplomatic Conference held at The Hague in March 1999. The Second Protocol seeks complement and expand upon the provisions of the Hague Convention, by including developments in international humanitarian law and cultural property protection which had emerged since 1954. It builds on the provisions contained in the Convention relating to the safeguarding of and respect for cultural property, as well as the conduct of hostilities; thereby providing greater protection for cultural property than that conferred by the Hague Convention and its First Protocol. One of the most important features of the Second Protocol is the 'enhanced protection' regime it establishes.