20. Operation: Iraqi Freedom
After the devastating attacks on September 11, 2001, the United States struggled to fight against the regime that Saddam Hussein had created. Two years later, in 2003, the United States along with the United Kingdom and other allies would march into rag and finally depose of its ruthless dictator.
It was during this operation, an artifact of great significance to the country was lost and it would be up to the American military to find it.