Cyberwarfare in the United States is the United States Cyber Command's military strategy of Proactive Cyber Defence and the use of cyberwarfare as a platform for attack. The United States Department of Defense sees the use of computers and the Internet to conduct warfare in cyberspace as a threat to national security. The Joint Forces Command issued a statement: "Cyberspace technology is emerging as an "instrument of power" in societies, and is becoming more available to a country's opponents, who may use it to attack, degrade, and disrupt communications and the flow of information. With low barriers to entry, coupled with the anonymous nature of activities in cyberspace, the list of potential adversaries is broad. Furthermore, the globe-spanning range of cyberspace and its disregard for n