Military Force Against Foreign EnemiesIn response to presidential requests, Congress has used its constitutional powerto declare war five times in the nationâs history: the War of 1812, the Mexican-American War, the Spanish-American War, World War I, and World War II.
Long reputation of providing high-quality work. CNA Engineering, Inc. in Sacramento, CA, is a civil engineering and surveying company providing expertise in the fields of civil engineering and planning that are essential to the development of a project.
CNA pioneered the field of operations research and analysis more than 70 years ago and, today, applies its efforts to a broad range of national security, defense, and public interest issues including education, homeland security, and air traffic management.NA is a nonprofit research organization that operates the Center for Naval Analyses and the Institute for Public Research.