Army - Emblem - Warrant Officer - CW5 - Bar - US Army - Retired - Mug SOF The 307th Engineer Battalion was

The 307th Engineer Battalion was first constituted on 5 August 1917 in the National Army as the 307th Engineers and organized at Camp Gordon

often in challenging conditions including rough seas

United States Army

the "Strike" Brigade participated in the largest helicopter air assault in military history to establish FOB Cobra and FOB Viper

deployed sonobuoys in tactical patterns

Army - Emblem - Warrant Officer - CW5 - Bar - US Army - Retired - Mug SOF The 307th Engineer Battalion wasIn the United States Armed Forces, the ranks of warrant officer (grades W1 to W5; see NATO: WO1WO5) are rated as officers above all non commissioned officers, candidates, cadets, and midshipmen, but subordinate to the lowest officer grade of O1 (NATO: OF1).[1][2][3] This application differs from the Commonwealth of Nations and other militaries, where warrant officers are the most senior of the other ranks (NATO: OR8 and OR9), equivalent to the U. S.