The move follows a culmination of investigations led by U.S. Immigration and Customs Enforcement agents . Lukman Faily , Iraq 's ambassador to the U.S. , said Monday 's ceremony sends a message to Islamic State that Iraq and its allies are committed to rebuilding the country and preserving its cultural heritage . Among the other items recovered by multi-year investigations are an ancient bronze axe and More than 60 clay reliefs .
The move follows a culmination of investigations led by U.S. Immigration and Customs Enforcement agents . Lukman Faily , Iraq 's ambassador to the U.S. , said Monday 's ceremony sends a message to Islamic State that Iraq and its allies are committed to rebuilding the country and preserving its cultural heritage . Among the other items recovered by multi-year investigations are an ancient bronze axe and 21 clay reliefs .