Smoke exits his musket as Vicksburg National Military Park Ranger Andrew Miller fires a round during a firing demonstration Friday at the Park. The demonstration was part of a July 4 program at the Park. (Photo by John Surratt | The Vicksburg Post)

Vicksburg National Military Park Ranger Andrew Miller describes the uniform and life of a Union soldier to park visitors as part of a musket firing demonstration Friday. (Photo by John Surratt | The Vicksburg Post)

Ranger Taylor Hegler, right, helps two young visitors build a redoubt at a sand table in the visitor center at the Vicksburg National Military Park Friday. The table was part of an exhibit of Civil War relics in the center. (Photo by John Surratt | The Vicksburg Post)

Civil War reenactor Kevin Adkins, left, inspects Ryan Stanley’s Sharpe’s carbine during an inspection during an Officers Call program on the Old Court House grounds Saturday. Stanely, from Madison, was the youngest re-enactor at the Officers’ Call. The reenactors were part of a program that featured drills and speeches in a lead-up to 2023 and the 160th anniversary of the Siege of Vicksburg. (Photo by John Surratt | The Vicksburg Post)

Dressed in Confederate uniforms, reenactors prepare their weapons for inspection during drill at Saturday’s Officers Call at the Old Court House Museum. (Photo by John Surratt | The Vicksburg Post)