As part of Operation WASHINGTON GREEN, the 3d Battalion ...

2-506th Airborne Infantry Battalion, 3rd Brigade. 3-506th Airborne Infantry Battalion, 1st Brigade - *What military historians failed to mention is that the 3-506th (OPCON to the 173rd Abn. Destroyed the 8th Battalion, 22nd NVA Regiment on Hill 474 in 1970, which other US and ARVN units could not accomplish. 173d Airborne Brigade. 1-503rd ... ................
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