 On 10 September 1943, the Independent State of Croatia (NDH) declared that the Treaties of Rome of 18 May 1941 with the Kingdom of Italy were null and void and annexed the portion of Dalmatia that had been ceded to Italy as part of the those treaties.The NDH attempted to annex Zara that had been a recognized territory of Italy since 1919, but Germany prevented the NDH from doing this.Because of these actions, the RSI held the NDH in contempt and refused to have diplomatic relations with the NDH or to recognize its territorial claims.