MAJ Arnold was commissioned as a Signal Officer at West Point in 2001 and is a Telecommunications Systems Officer (Functional Area 24). He served as a platoon leader in the 32d Signal Battalion, Darmstadt, Germany and as the Brigade Data Officer for the 22d Signal Brigade, Darmstadt, Germany. MAJ Arnold deployed with the 22d Signal Brigade in support of Operation Iraqi Freedom I in 2003 and again in 2005-2006. His recent assignment was to the Army Global Network Operations and Security Center which transitioned to the G33 for Army Cyber Command. His research interests are Computer Networks, Routing Protocols, Wireless Networks, and Network Security.