Kratos Defense & Security Solutions, Inc. offers various technologies, products and solutions focused on the United States and its allies' national security. The Company's segments include Kratos Government Solutions (KGS), Unmanned Systems (US) and Public Safety & Security (PSS). The KGS segment includes the operations of Defense Rocket Support Services (DRSS), Microwave Electronics Division (ME), Technical and Training Solutions (TTS), and Modular Systems (MS), which provide technology-based defense solutions, involving products and services, primarily for the United States National Security priorities. The US segment includes its unmanned aerial, ground, seaborne and command, control and communications system business. The PSS segment provides independent integrated solutions for homeland security, public safety, critical infrastructure, and security and surveillance systems for government and commercial applications.