News Release
CACI International Inc 1100 North Glebe Road Arlington Virginia 22201
www.caci.com

CACI Awarded Prime Contract on $900 Million, Multiple-Award Program with United States Strategic Command

Company to Support Management and Professional Services; Studies, Analysis and Evaluations; and Engineering and Technical Services

Arlington, VA, April 27, 2009 - CACI International Inc (NYSE:CAI) announced today that it has been awarded a prime contract to support the multiple-award United States Strategic Command (USSTRATCOM) Systems and Mission Support II (USAMS II) program. CACI received one of six prime awards. The USAMS II program has a total estimated ceiling value of $900 million. The five-year indefinite delivery/indefinite quantity task order contract was awarded to CACI for a one-year base and four one-year option periods. The new work expands CACI's development of its program management and systems engineering and technical assistance (PM SETA) support services functional core competency.

USSTRATCOM is one of ten unified commands in the Department of Defense. The missions of U.S. Strategic Command are to deter attacks on US vital interests; to ensure U.S. freedom of action in space and cyberspace; to deliver integrated kinetic and non-kinetic effects to include nuclear and information operations in support of U.S. Joint Force Commander operations; to synchronize global missile defense plans and operations; to synchronize regional combating of weapons of mass destruction plans; to provide integrated surveillance and reconnaissance allocation recommendations to the Secretary of Defense; and to advocate for capabilities as assigned. USAMS II is the vehicle USSTRATCOM will use to procure advisory and assistance services support for management and professional services; studies, analysis, and evaluations; and engineering and technical services. This support includes all USSTRATCOM component commands, supporting and supported agencies, and the Air Force Weather Agency.

CACI brings comprehensive experience in managing processes that optimize program resources that can be applied to the USAMS II program. This includes translating command requirements into configured systems, integrating technical inputs, characterizing and managing risk, transitioning technology, and verifying that designs meet end users' operational needs. Additionally, the company provides key program management and systems engineering and technical assistance services that include policy and concept development, operations support, architecture and system engineering, project management, and strategic planning. This contract award will be executed by CACI's Air Force Division Group headquartered in Omaha, Nebraska.

According to Bill Fairl, CACI President of U.S. Operations, "CACI is extremely pleased with this new award from the United States Strategic Command which enables us to contribute to the critical work of such a major Department of Defense initiative. We're confident that our extensive program management capabilities will be a key factor in meeting the objectives of the USAMS II program."

Paul Cofoni, CACI President and Chief Executive Officer, said, "As a prime contractor on this USSTRATCOM contract, CACI will have the opportunity to expand our services to many of the component commands. We look forward to being able to enhance our work at the nexus of intelligence and security."

CACI International Inc provides the professional services and IT solutions needed to prevail in today's defense, intelligence, homeland security, and federal civilian government arenas. We deliver enterprise IT and network services; data, information, and knowledge management services; business system solutions; logistics and material readiness; C4ISR Solutions; cyber solutions; integrated security and intelligence solutions; and program management and SETA support services. CACI services and solutions help our federal clients provide for national security, improve communications and collaboration, secure the integrity of information systems and networks, enhance data collection and analysis, and increase efficiency and mission effectiveness. We add value to our clients' operations, increase their skills and capabilities, and enhance their missions. CACI is a member of the Fortune 1000 Largest Companies and the Russell 2000 index. CACI provides dynamic careers for approximately 12,300 employees working in over 120 offices in the U.S. and Europe. CACI is the IT provider for a networked world. Visit CACI on the web at www.caci.com and www.asymmetricthreat.net.

There are statements made herein which do not address historical facts, and therefore could be interpreted to be forward-looking statements as that term is defined in the Private Securities Litigation Reform Act of 1995. Such statements are subject to factors that could cause actual results to differ materially from anticipated results. The factors that could cause actual results to differ materially from those anticipated include, but are not limited to, the following: regional and national economic conditions in the United States and the United Kingdom, including conditions that result from terrorist activities or war; changes in interest rates; currency fluctuations; failure to achieve contract awards in connection with recompetes for present business and/or competition for new business; the risks and uncertainties associated with client interest in and purchases of new products and/or services; continued funding of U.S. government or other public sector projects, based on a change in spending patterns, or in the event of a priority need for funds, such as homeland security, the war on terrorism or rebuilding Iraq; government contract procurement (such as bid protest, small business set asides, etc.) and termination risks; the results of government investigations into allegations of improper actions related to the provision of services in support of U.S. military operations in Iraq; individual business decisions of our clients; paradigm shifts in technology; competitive factors such as pricing pressures and/or competition to hire and retain employees (particularly those with security clearances); material changes in laws or regulations applicable to our businesses, particularly in connection with (i) government contracts for services, (ii) outsourcing of activities that have been performed by the government, (iii) competition for task orders under Government Wide Acquisition Contracts ("GWACs") and/or schedule contracts with the General Services Administration; and (iv) accounting for convertible debt instruments; our own ability to achieve the objectives of near term or long range business plans; and other risks described in the company's Securities and Exchange Commission filings.

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For investor information contact:

David Dragics
Senior Vice President, Investor Relations
(866) 606-3471
ddragics@caci.com

For other information contact:

Jody Brown
Executive Vice President, Public Relations
(703) 841-7801
jbrown@caci.com