The bond market in the U.S. includes bonds issued by both government (federal, state, local and special agencies) and corporations. In recent years, Treasuries have gained extra attention as safe havens and as part of the Fed's balance sheet strategy. Federal agency mortgage-backed securities also have received extra focus as part of the Fed's balance sheet strategy.  A final section of this module lists links to all Treasury  Announcements and Auctions on the calendar for the coming year, and for past years.