At the time , the Bình Xuyên was licensed Preventing_or_letting with controlling Control the national police by Emperor Bảo Đại , and Prime Minister Ngô Đình Diệm issued an ultimatum for them to surrender Surrendering and come Arriving under state control Control .

The United States also played Participation a role in the Operation , directing Croatia to a military consultancy firm , Military Professional Resources Incorporated ( MPRI ) , that signed Writing a Pentagon licensed contract to advise Convincing , train Preventing_or_letting and provide Supply intelligence to the Croatian army .