 Complete the following phrase:  With the collapse of the Independent State of Croatia NDH in May 1945, its Armed Forces, together with other Axis troops, started retreating towards Austria in order to surrender to the British forces. The NDH leadership abolished racial laws and intended to seek Western support in fighting Communism. On 6 May they sent a request for collaboration with the Allies, which was rejected. The Yugoslav Partisans took control of Zagreb, the capital of NDH, on 8 May. The retreating columns marched through Slovenia and were accompanied by many civilians. By 14 May, several thousand troops were admitted by the British. On 15 May, the main column reached the town of Bleiburg, where their surrender was rejected and were 