Historical Egyptian conquest never fully absorbed or subdued the Sudan

Evidence

The political bonds which have at intervals in the past united Egypt with the Sudan have always been fragile. Egyptian conquerors have at various times overrun parts and even the whole of the Sudan. But it has never been really subdued by, or in any sense amalgamated with, Egypt. — Eve M. Troutt Powell, A Different Shade of Colonialism_…, 832

Categorization

• corroborated: 2 independent passages support this claim — Eve M. Troutt Powell, A Different Shade of Colonialism_…, 832
• XREF: connects to: Religion and history make Egypt’s Sudan conquest non-imperial