Global Defense & National Security Systems, Inc. (Nasdaq: GDEF) was a blank-check company that completed its business combination with STG Group, Inc., a Virginia-based provider of information technology and professional services to U.S. federal government and defense clients, with the merger closing in late 2014. The SPAC, which raised capital and listed in 2014, targeted the defense and government IT sector and filed this 8-K on December 31, 2014, reflecting material corporate activity surrounding the transaction. Following the combination, STG Group operated as a publicly traded entity serving federal defense and intelligence agency customers. Visit SpacDesk and sign up for full filing history, deal metrics, and real-time SPAC intelligence on GDEF and thousands of other transactions.