Exactly
More sources for 4 million deaths since 1955.
1955-1972: 1.5 Million
Heisting HIAS: The Deracination of a Communal Organization.
By Stephen Steinlight on November 11, 2009..
Center for Immigration Studies
From 1955-1972, the Muslim regime in Khartoum slaughtered nearly 1.5 million Christian Sudanese.
The "Lost Boys" of Sudan.
Aug 25, 2015.
Proceedings: Workshop on Human Rights in the Sudan : November 16-19, 1992, Cairo : Sponsored by the Arab Lawyers Union, the Fund for Peace & the Sudan Human Rights Organization. Egypt: The Union, 1992, p.9
Elijah Malok Aleng contributed a paper entitled 'Destitution and Displacement in The Sudan.' In it, he described the tragedy of civil war and its political underpinnings. During the first civil war of 1955–1972, between 750,000 and 1.5 million Sudanese nationals, of whom a high proportion were civilians, lost their lives.
In 1983 the civil war resumed, and with it, massive violations of civilians' human rights.
Aleng joined a number of human rights groups in asserting that since 1983 these violations have included extrajudicial executions, torture, starvation, the rape and / or enslavement of women and children, the pillaging and destruction of agricultural crops, the use of the civilian population as a human shield during military operations; and the persecution of Christians. Shari'a or Islamic law was harshly applied to chop off the hands of 90 citizens charged with petty theft who were mostly from the neglected and marginalized regions of South and Western Sudan.
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1983–2005: 2.5 million
The "Lost Boys" of Sudan.
Aug 25, 2015.
Rockford Mirotary
The Lost Boys of Sudan is the name given to the children who were displaced and/or orphaned during the Second Sudanese Civil War (1983–2005); about 2.5 million were killed and millions were displaced.
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The World’s Newest Nation: The Republic of South Sudan
July 13, 2011.
United States Holocaust Memorial Museum
The referendum on which they voted was a result of the 2005 peace agreement signed by the North and South, which ended 22 years of civil war that had led to the deaths of 2.5 million South Sudanese....
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Article: Spiraling Violence and Drought Drive Refugee Crisis in South Sudan.
Oct 24, 2017.
Migrationpolicy.org
More than 2.5 million people were killed during the region's longest civil war, from 1983 to 2005, and tens of millions of lives were affected...