From his conversation with President Lincoln, what did Corporal Clark dream of?

first lines; we see a battle taking place in the rain with white and black soldiers killing each other]

Private Harold Green: [voice over] Some of us was in the Second Kansas Colored. We fought the rebs at Jenkins' Ferry last April, just after they'd killed every Negro soldier they captured at Poison Springs. So at Jenkins' Ferry, we decided weren't taking no reb prisoners. And we didn't leave a one of 'em alive. The ones of us that didn't die that day, we joined up with the 116th U. S. Colored, sir. From Camp Nelson Kentucky.

[we see the soldier talking to Lincoln, who is sitting as it rains facing the soldiers]

Abraham Lincoln: What's your name, soldier?

Private Harold Green: Private Harold Green, sir.

Corporal Ira Clark: I'm Corporal Ira Clark, sir. Fifth Massachusetts Cavalry. We're waiting over there. We're leaving our horses behind, and shipping out with the 24th Infantry for the assault next week on Wilmington

To ship out on the 24 century