In a May 20, 2013, letter, Massachussetts Democratic Sens. Elizabeth Warren and William Cowan call on Army Secretary John McHugh to protect the Warfighter Information Network-Tactical and Handheld, Manpack, Small Form Fit radio programs from funding reductions.

In a May 20, 2013, letter to Defense Secretary Chuck Hagel, Massachussetts Democratic Sens. Elizabeth Warren and William Cowan express their "strong support for the Army Network Modernization programs."

In a May 20, 2013, letter to Army Secretary John McHugh and Chief of Staff Gen. Raymond Odierno, Rep. Duncan Hunter (R-CA) responds to a May 8, 2013, letter from McHugh and Odierno regarding the Distributed Common Ground System-Army.

In a May 8, 2013, letter to Rep. Duncan Hunter (R-CA), Army Secretary John McHugh and Chief of Staff Gen. Raymond Odierno write that the lawmaker's questions during a recent hearing on the Distributed Common Ground System-Army and the provision of Palantir to the 3rd Infantry Division "were based upon inaccurate and incomplete information."

The May 23, 2013, Government Accountability Office report recommends that the defense secretary "direct component heads to discuss in their certification letters all required inventory review elements, as well as how instances where contractors are performing inherently governmental functions were resolved."

The May 23, 2013, Government Accountability Office report finds that the "Navy's analysis of costs and benefits regarding Naval Station Mayport demonstrated some best practices and minimally addressed other requirements."

In a May 21, 2013, letter to Army Secretary John McHugh, 122 House lawmakers call for funding for the upgrading of the M1A1 Abrams tanks that the National Guard uses.

On May 21, 2013, the House Armed Services tactical air and land forces subcommittee released a draft mark for its portion of the fiscal year 2014 defense authorization bill.

On May 21, 2013, the House Armed Services readiness subcommittee released a draft mark for its portion of the fiscal year 2014 defense authorization bill.

On May 21, 2013, the House Armed Services seapower and projection forces subcommittee released a draft mark for its portion of the fiscal year 2014 defense authorization bill.

On May 21, 2013, the House Armed Services strategic forces subcommittee released a draft mark for its portion of the fiscal year 2014 defense authorization bill.

On May 21, 2013, the House Armed Services intelligence, emerging threats and capabilities subcommittee released a draft mark for its portion of the fiscal year 2014 defense authorization bill.

On May 21, 2013, the House Armed Services personnel subcommittee released a draft mark for its portion of the fiscal year 2014 defense authorization bill.

The Defense Department has provided Congress two reprogramming requests totaling $9.6 billion, according to a cover letter sent to lawmakers on May 17, 2013, by Pentagon Comptroller Robert Hale.

On May 14, 2013, the Senate Armed Services seapower subcommitte held a hearing on Marine Corps modernization issues. Includes the joint prepared testimony of Navy acquisition chief Sean Stackley and Marine Corps Combat Development Command chief Lt. Gen. Richard Mills.

On May 16, 2013, the Senate Armed Services Committee held a hearing on the law of armed conflict, the use of military force and the 2001 authorization for use of military force. Includes the prepared joint testimony . . .

The May 17, 2013, Government Accountability Office report finds that the Defense Department's continuing efforts to set up a business enterprise architecture and modernize its business systems and processes still faces "long-standing challenges."

The April 2013 Air Force report contends that using the RQ-4 Block 30 Global Hawk unmanned aircraft would be less expensive for the service to conduct a variety of high-altitude, long-endurance reconnaissance missions than using the U-2 spy plane.

In a May 13, 2013, letter to Defense Secretary Chuck Hagel, House Armed Services Committee Chairman Buck McKeon (R-CA) and Rep. Jim Moran (D-VA), a member of the House Appropriations defense subcommittee, call on hagel to deny the Air Force's efforts to wiggle out of a congressional mandate to purchase the remaining three aircraft due to come off the Global Hawk production line.

The May 16, 2013, Government Accountability Office report finds that "additional information [is] needed to improve military departments' strategies for corrosion prevention and control."