About 100 Neo-Nazis rallied at Valley Forge National Historical Park in the US state of Pennsylvania on Saturday, but nearly twice as many opponents heckled them from a hillside. Still, both groups were outnumbered by federal police officers. The National Park Service said no arrests were made at the rally site, but one person was arrested after a scuffle in a parking lot. Neo-Nazis and Ku Klux Klan members shouted slogans from a stage at the park, where about 11,000 soldiers commanded by George Washington had camped from December 1777 to June 1778. The Minnesota-based National Socialist Movement, which sponsored the rally, claims Washington held separatist and anti-Semitic views, a position disputed by most historians. The event was held on the Jewish holiday of Yom Kippur. Rally organizers have said they were unaware of the holiday when they planned the event. Other speakers criticized America's role in the Iraq war, calling it "Israel's War."