Fort Myer. The platoon serves at presidential funerals, inaugurations, Pentagon retirements, state dinners and state visits at the White House, and during presidential speeches in the Rose Garden, among other duties. Current organization of the 3d Infantry Regiment Regimental Headquarters and Headquarters Company Headquarters and Headquarters Company (HHC) Headquarters Platoon Coordinating Staff RS-1 (Administration) RS-2 (Intelligence) RS-3 (Operations) Chemical, Biological, Radiological, and Nuclear Operations Drafters and Announcers RS-4 (Logistics) Property Book Office Ceremonial Equipment Branch RS-6 (Communications) Communications IMO (Information Management Operations Legal Office Chaplains Office Public Affairs Office Regimental Recruiters The Old Guard Museum 1st Battalion 3rd US Infantry Regiment The 1st Battalion is composed of the following units: HHC Battalion Staff Sections: (S1, S2, S3, S4, S6) Caisson Platoon Presidential Salute Battery Headquarters Platoon Company B Escort Platoon Casket Platoon Firing Party Platoon Headquarters Platoon Company C Escort Platoon Casket Platoon Firing Party Platoon Headquarters Platoon Company D Escort Platoon Casket Platoon Firing Party Platoon Headquarters Platoon Company H Escort Platoon Casket Platoon Firing Party Platoon Headquarters Platoon Easy Company 2nd Battalion 3rd US Infantry Regiment Stationed at Fort Lewis, Washington, the 2nd Battalion, 3d US Infantry Regiment, serves as one of three infantry battalions of the 1st Stryker Brigade Combat Team of the 7th Infantry Division. After a 31-year hiatus from service, the 2nd Battalion was reactivated on 15 March 2001 as part of the U.S. Army's first Stryker brigade (inactive) combat team. It served as part of the first deployment of a Stryker brigade combat team in 2003. It then served a 15-month deployment in 2006–2007. It deployed to Iraq again in 2009 and Afghanistan in 2011. From 1966 to 1970, the 2nd Battalion was part of the 199th Light Infantry Brigade and 23d Infantry Division in Vietnam. The 2nd Battalion has the following units: HHC Scout Platoon Mortar Platoon Medical Platoon Battalion Staff Sections: (S1, S2, S3, S4, S6) Company A First Platoon Second Platoon Third Platoon Mortar Section Company B First Platoon Second Platoon Third Platoon Mortar Section Company C First Platoon Second Platoon Third Platoon Mortar Section Company G Headquarters/Field Feeding Team Platoon Maintenance Platoon Distribution Platoon 4th Battalion 3rd US Infantry Regiment From 1966 to 1974, the 4th Battalion was part of the 11th and 198th Infantry Brigades and 23d Infantry Division in Vietnam. The 4th Battalion was reactivated at Fort Myer in 2008. The 4th Battalion is composed of the following