FAS

Declarations of War: Background and Implications, and More from CRS

09.09.13 | 2 min read | Text by Steven Aftergood

Over the course of American history, Congress has formally enacted 11 declarations of war, as well as a similar number of statutory authorizations for the use of military force.

The differences between these two categories of legislative action, which are quite distinct, are detailed in a Congressional Research Service report that was updated earlier this year. See Declarations of War and Authorizations for the Use of Military Force: Historical Background and Legal Implications, January 11, 2013.

As Congress weighs its response to an Obama Administration request to authorize the use of military force in Syria, another newly updated CRS report provides background on Armed Conflict in Syria: U.S. and International Response, September 6, 2013.

The 52 American diplomatic and military personnel who were taken hostage in Tehran during the Iranian Revolution in 1979 have been unsuccessful in their attempts to recover financial damages from the Government of Iran, but they are still trying. A new CRS report refreshes the story.  See The Iran Hostages: Efforts to Obtain Compensation, September 5, 2013.

Other new and updated CRS reports that Congress has withheld from direct public access include the following.

China’s Economic Rise: History, Trends, Challenges, and Implications for the United States, September 5, 2013

China Naval Modernization: Implications for U.S. Navy Capabilities — Background and Issues for Congress, September 5, 2013

Navy Force Structure and Shipbuilding Plans: Background and Issues for Congress, September 6, 2013

Navy Ford (CVN-78) Class Aircraft Carrier Program: Background and Issues for Congress, September 6, 2013

Sexual Assaults Under the Uniform Code of Military Justice (UCMJ): Selected Legislative Proposals, September 6, 2013

Federal Mandatory Minimum Sentencing Statutes, September 9, 2013

publications
See all publications
FAS
Blog
Gil on the Hill: Who Won the Shutdown?

We came out of the longest shutdown in history and we are all worse for it. Who won the shutdown fight? It doesn’t matter – Americans lost. And there is a chance we run it all back again in a few short months.

11.25.25 | 7 min read
read more
Environment
Issue Brief
Collaborative Action in Massachusetts to Counter Extreme Heat

Promising examples of progress are emerging from the Boston metropolitan area that show the power of partnership between researchers, government officials, practitioners, and community-based organizations.

11.24.25 | 17 min read
read more
Government Capacity
day one project
Policy Memo
Tax Filing as Easy as Mobile Banking: Creating Product-Driven Government

Americans trade stocks instantly, but spend 13 hours on tax forms. They send cash by text, but wait weeks for IRS responses. The nation’s revenue collector ranks dead last in citizen satisfaction. The problem isn’t just paperwork — it’s how the government builds.

11.20.25 | 15 min read
read more
Clean Energy
Report
Report: When Ambition Meets Reality — Lessons Learned in Federal Clean Energy Implementation, and a Path Forward

In a new report, we begin to address these fundamental implementation questions based on discussions with over 80 individuals – from senior political staff to individual project managers – involved in the execution of major clean energy programs through the Department of Energy (DOE).

11.19.25 | 6 min read
read more