The Navy for several years has carried out a variety of irregular warfare (IW) and counterterrorism (CT) activities, and has taken some steps in recent years to strengthen its ability to conduct such activities. Among the most readily visible of the Navy's current IW operations are those being carried out by Navy sailors serving ashore in Iraq and Afghanistan. The Navy's IW and CT activities pose a number of potential oversight issues for Congress, including the definition of Navy IW activities, specific Navy IW budget priorities, and how much emphasis to place on IW and CT activities in future Navy budgets.