of about $330 million related to the SOF CLSS program, which began late in the quarter ended September 26, 2010, and the LCS program of approximately $165 million. These increases partially were offset by a decline in volume of approximately $375 million for certain ship and aviation programs (primarily Maritime Patrol Aircraft and PTDS), about $200 million for various logistics and training services, and approximately $115 million for tactical missile and fire control programs. Net sales for the Electronic Systems segment increased by $769 million, or 6%, in 2010 compared to 2009. Contributing to the increases were higher volume of about $430 million on various training and logistics activities (including the SOF CLSS program), increased deliveries on tactical missile programs (including MLRS and JASSM) of approximately $250 million, increased volume on various surface naval warfare programs (the Aegis Combat System) of about $140 million, and higher volume of about $100 million on air defense programs (including PAC-3). These increases partially were offset by lower volume of approximately $185 million on undersea warfare programs. Operating profit for the Electronic Systems segment increased $40 million, or 2%, compared to the corresponding period in 2010. Operating profit increased by about $60 million due to higher volume and retirement of risks on air defense programs (including PAC-3 and THAAD) and approximately $35 million primarily due to the recognition of reserves on certain undersea warfare programs in 2010. These increases partially were offset by approximately $55 million of reserves for contract cost matters on various ship and aviation programs (including the terminated presidential helicopter program). Operating profit for the Electronic Systems segment increased by $100 million, or 6%, in 2010 compared to 2009. The increase primarily was attributable to volume and retirement of risk on various training and logistics services programs of about $50 million, approximately $65 million on tactical missiles programs (including MLRS and JASSM) due to volume and the retirement of risks, and about $40 million due to the retirement of risks on fire control programs. These increases partially were offset by a decline in operating profit of approximately $75 million on undersea warfare programs due to lower volume and recognition of reserves. Backlog increased in 2011 compared to 2010 primarily due to orders exceeding sales on air defense programs (including THAAD and PAC-3), partially offset by higher sales volume on various training and logistics activities and surface naval warfare programs. Backlog increased in 2010 compared to 2009 primarily from increased orders for air defense and tactical missile programs and on various training and logistics services programs. These increases partially were offset by higher sales volume on ship and aviation systems and surface naval warfare programs. We expect Electronic Systems’ net sales for 2012 will be comparable with 2011. We expect flat to low single digit percentage growth in key programs such as the LCS, offset by a decline in volume on logistics and training services contracts. Operating profit and margin are expected to be comparable with 2011 results. Our IS&GS business segment provides management services, Information Technology (IT) solutions, and advanced technology expertise across a broad spectrum of applications. IS&GS supports the needs of customers in human capital planning, data protection and sharing, cyber-security, financial services, health care, energy and environment, security, space exploration, biometrics, and transportation. IS&GS provides network-enabled situation awareness, delivers communications and command and control capability through complex mission solutions for defense applications, and integrates complex global systems to help our customers gather, analyze, and securely distribute critical intelligence data. IS&GS has a portfolio of many smaller contracts as compared to our other business segments. IS&GS’ major programs include the Command and Control, Battle Management, and Communications contract, En-Route Automation Modernization (ERAM) contract, the Hanford Mission Support contract, and the National Science Foundation’s U.S. Antarctic Support program. We have classified PAE and EIG as discontinued operations (Note 14) and, therefore, financial information related to these businesses has been excluded from the segment information below. IS&GS’ operating results included the following: 35 (In millions) 2011 2010 2009 Net sales $9,381 $9,921 $ 9,599 Operating profit 874 814 874 Operating margin 9.3% 8.2% 9.1% Backlog at year-end 9,300 9,700 10,700 Information Systems & Global Solutions