World War II re-enactors are setting up camp in the New York suburb.
"Captain" Robert Scarabino says they strive for authenticity.
He says no cellphones are permitted.
Anyone caught drinking out of a flip-top can will get a chewing-out by the sergeant.
The troops will have the support of a genuine Sherman tank, while period warplanes will fly overhead.
About a-thousand people are expected to show up to share the living history lesson.