WRIGHT-PATTERSON AIR FORCE BASE | The U.S. Marines camped out here planned to stage a mock helicopter assault on an abandoned Dayton building between 8 and 9 a.m. today officials said Sunday.

The Marines are here for two weeks of urban training in the Dayton area and their military helicopters were seen flying throughout the region Sunday.

Col. Andrew "Andy" Frick, commander of the 26th Marine Expeditionary Unit, said the training will include two nighttime assaults and one daylight raid on abandoned buildings.

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