A patriotic monument honoring World War I veterans will remain in Bladensburg, Maryland.
Prince George's County lost 49 men in combat in World War I and constructed a memorial to them.
Humanists complained because the monument is a cross and filed a lawsuit.
A federal court has ruled the monument is legal and that it can remain.
Roger Byron of Liberty Institute says the legal group represented the American Legion in the lawsuit.
He says the Legion erected the memorial in 1925 and maintained it until the 1960s.
"And then some time in the 60's they conveyed their interest to the state of Maryland," Byron explains, "because it was sitting at that point in the median of the intersection of two major roadways."
That means the cross was then on government property. So humanists said it was an unconstitutional entanglement of government and religion, and wanted it demolished or removed.
In the same area where it stands are memorials for the Vietnam, Korean and Second world wars, and another for the victims of 9-11.