On April 9, 2003, the last of the museum curators and staff left the museum. Iraqi forces engaged U.S. forces a few blocks away, as well as the nearby Special Republican Guard compound. Lt. Col. Eric Schwartz of the U.S. third Infantry Division declared that he "was unable to enter the compound and secure it since they attempted to avoid returning fire at the building. Sniper positions, discarded ammunition, and 15 Iraqi Army uniforms were later discovered in the building". The positions turned out to be museum arranged sandbags and protective foam support and mitigation barriers for large size artefacts, the uniforms and ammunition turning out to belong to the museum curators and staff (being reserve military personnel in state of war) and to the contrary to the U.S. statement, no traces of any serious engagement were detected anywhere in the museum and its surrounding yard. Iraqi staff as a protective measure had built a fortified wall along the western side of the compound, allowing concealed movement between the front and rear of the museum, and the U.S. forces could have secured the museum by simply encircling and isolating it preventing the looters from accessing the facility.