Trump's administration has banned the Pentagon from celebrating Black History Month and other diversity programs, sparking a fight for civil rights.
The 1st Rhode Island Regiment was an integrated unit composed of Black, Indigenous and white soldiers who served together.
"Black history is not just something we look back at, it's something we are standing in at this moment," Rev. Alex Gee said.
Opal Lee spent Wednesday in Fort Worth, speaking with students from Adventist Junior Academy.