Black soldiers in the civil war commonlit How does paragraph 6 contribute to the development of ideas in the text?

Paragraph 6: In addition to the perils of war faced by all Civil War soldiers, black soldiers faced additional problems stemming from racial prejudice. Racial discrimination was prevalent even in the North, and discriminatory practices permeated the U. S. military. Segregated units were formed with black enlisted men and typically commanded by white officers and black noncommissioned officers. The 54th Massachusetts was commanded by Robert Shaw and the 1st South Carolina by Thomas Wentworth Higginson — both white. Black soldiers were initially paid $10 per month from which $3 was automatically deducted for clothing, resulting in a net pay of $7. In contrast, white soldiers received $13 per month from which no clothing allowance was drawn. In June 1864 Congress granted equal pay to the U. S. Colored Troops and made the action retroactive.
Black soldiers received the same rations and supplies. In addition, they received comparable medical care.