This is a firm fixed-price delivery order awarded by the Department of the Air Force Air Combat Command to Raytheon Company, a major defense contractor, to perform various pre-installation tasks on the Command and Control Switching System contract. The $1,156,310.00 task order supports the Department of Defense's Strategic Command (STRATCOM) headquarters' Defense Red Switch Network (DRSN)/Secure Network Defense Zone (SECN-DZ) system. The contract has an estimated completion date of April 30, 2018 and does not have a set-aside designation. Raytheon has held larger indefinite delivery/indefinite quantity (IDIQ) contracts with the Department of Defense to provide engineering support for upgrades and sustainment of the Air Force's critical Command and Control Switching System, as well as a multiple-award basic ordering agreement to deliver repair services for electronic systems supporting the Navy's supply chain and logistics programs.