The Hague Convention sets out a minimum level of respect which all States Parties must observe, both in relation to their own national heritage as well as the heritage of other States Parties. States are obliged not to attack cultural property, nor to remove or misappropriate movable property from its territory of origin. Only exceptional cases of 'military necessity' will excuse derogation from this obligation. However, a State Party is not entitled to ignore the Convention's rules by reason of another Party's failure to implement safeguarding measures alone.