World Surveillance Group Inc. (OTCBB: WSGI), a developer of lighter-than-air unmanned aerial vehicles ("UAVs") and related technologies, announced today that the Company has confirmed the expansion of the flight testing schedule of its Argus One UAV at the U.S. Army's proving ground facilities in Yuma, Arizona.

Due to time constraints resulting from WSGI's decision to accelerate its integration of certain customer payloads into the pod bay of the Argus One UAV prior to its flight testing at Yuma, WSGI has agreed with the test directors at Yuma to schedule the Argus One testing and demonstrations over two time periods. The initial round of flight test exercises focusing on aerodynamic and free flight maneuvering of the Argus One airship will commence during the last two weeks of August and is likely to extend for several days.

This initial exercise will be followed by an expanded payload testing and demonstration exercise, expected to take place in October 2011 at Yuma, and will focus on the testing and performance of the Argus One UAV integrated with various ISR and communications payload packages creating a lighter-than-air platform. WSGI's modular sensor bay on the Argus One is capable of hosting various sensors and payloads with a simple plug and play architecture that provides power, an airship inertial navigation system and environmental data. Following the strong interest from potential partners to test and demonstrate the Argus One at Yuma as a mobile platform for specific ISR and communications packages, WSGI decided to adjust its testing program, in conjunction with the test operators at the proving ground facilities in Yuma, to accommodate these potential partnership relationships.

In October's test exercises, the Argus One is expected to be flown with a tracking and monitoring system provided by WSGI's wholly owned subsidiary, Global Telesat Corp ("GTC") which will process data collected through Globalstar Inc.'s low earth orbit satellite constellation utilizing GTC's proprietary web-based online platform. In conjunction with the Company's partners, additional communications systems will also be integrated for such tests into the Argus One's pod bay, which is located mid-airship for increased stabilization and vibration dampening. The newly constructed modular sensor bay on the Argus One airship can be attached or removed easily for rapid tactical launch scenarios and ease of mobilization.

For a video clip of the recent tests flights of the Argus One UAV please visit www.wsgi.com

About World Surveillance Group Inc.

World Surveillance Group Inc. (OTCBB: WSGI) designs, develops, markets and sells autonomous, lighter-than-air UAVs capable of carrying payloads that provide persistent security and/or wireless communications solutions at low, mid, and high altitudes. WSGI's airships, when integrated with electronics systems and other high technology payloads, are designed for use by government-related and commercial entities that require real-time intelligence, surveillance and reconnaissance or communications support for military, homeland defense, border control, drug interdiction, natural disaster relief and maritime missions.

WSGI's wholly owned subsidiary, Global Telesat Corp., provides satellite airtime and tracking services to the U.S. government and defense industry end users and resells airtime and equipment from leading satellite network providers such as Globalstar, Inmarsat, Iridium and Thuraya. GTC specializes in satellite tracking services using the Globalstar satellite network and owns a number of network infrastructure devices containing the signal processing technology that powers the Globalstar Simplex Data Service. GTC's equipment is installed in various ground stations across Africa, Asia, Australia, Europe and South America.

For more information regarding WSGI, please visit www.wsgi.com, or view our reports and filings with the Securities and Exchange Commission on http://www.sec.gov.

Forward-Looking Statements

Certain statements in this release constitute forward-looking statements. These statements include the timing or results of any flight testing of our UAVs, the expected payloads or systems to be carried on the Argus One for testing, the effectiveness of any tested payloads or the Argus One as a platform, the further advancement, development or commercialization of the Company's UAVs, the outcome of any demonstrations of the Company's airships, potential interested parties, the capabilities and advantages of the Company's technology and products, the use of the Company's products for any specific applications, the Company's ability to accelerate the foregoing, the synergies, benefits or opportunities that may result from the GTC acquisition, the ability to integrate the products or operations of GTC and the Company, the ability of the combined entity to leverage relationships with the U.S. Government or other customers to attain contracts or increase revenues, and the revenues, cash flows and financial condition of the Company or GTC. Forward-looking statements also include the Company's ability to execute its business plan, achieve commercial success or growth in its businesses or to accomplish its strategic goals, and the Company's ability to capitalize on any future market or acquisition opportunities, grow the business of the combined Company, or to enhance shareholder value. The words "forecast," "project," "intend," "expect," "plan," "should," "would," and similar expressions and all statements, which are not historical facts, are intended to identify forward-looking statements. These forward-looking statements involve and are subject to known and unknown risks, uncertainties and other factors, any of which could cause the Company to not achieve some or all of its goals or the Company's previously reported actual results, performance (finance or operating) to change or differ from future results, performance (financing and operating) or achievements, including those expressed or implied by such forward-looking statements. The Company assumes no, and hereby disclaims any, obligation to update the forward-looking statements contained in this press release.

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Contact: World Surveillance Group Inc. 321-452-3545 Barbara M. Johnson investors@wsgi.com