The 35th Signal Battalion is a reserve unit of the United States Army. The 35th provides critical battlefield communications in support of combat operations worldwide. It is headquartered in Fort Allen, Puerto Rico. The 35th Signal Battalion is made up of the following companies: HHC, A Co, B Co, C Co. It currently has soldiers deployed in the Global War on Terror in support of operations in Iraq (Operation Iraqi Freedom) and Afghanistan (Operation Enduring Freedom).