Maria I. Ortiz

Capt. Maria I. Ortiz, a former chief nurse of general medicine at Kirk U.S. Army Health Clinic at Aberdeen Proving Ground, was killed July 2007 during a mortar attack in Baghdad's Green Zone. She was head nurse for the 28th Combat Support Hospital in its Intermediate Care Ward.

Capt. Ortiz, who was 40, is the first female nurse killed in conflict from APG, according to the Department of Defense.

She served at Kirk Army Health Clinic for a year and a half, working as chief nurse of the General Medicine Clinic and was chief of plans, training, mobilization, security and education.

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Capt. Ortiz was deployed to Iraq in September 2006 after serving 18 months at APG.

Ari Daniel Brown-Weeks

Ashley Brown-Weeks, of Abingdon, is another war widow. Her husband, Specialist Ari Daniel Brown-Weeks, 23, died in September 2007 in Iraq after the truck he was in rolled over.

Spc. Brown-Weeks was originally from New England, but moved to Abingdon a few months after meeting his future wife in August 2005.

After graduating from Airborne Jump School, Spc. Brown-Weeks returned to his home in Harford County in November 2006, and the two were married in December. It was only a month later that Spc. Brown-Weeks left for Iraq in January 2007.

Juanita Warman

Havre de Grace resident Lt. Col. Juanita Warman, 55, was one of the 13 people killed in the mass shooting at Fort Hood, Texas in November 2009.

She had moved to the city with her husband, Philip Warman, in 2005 and lived on the waterfront.

Lt. Col. Warman was a certified psychiatric nurse practitioner specializing in treating post-traumatic stress disorder and traumatic brain injury and spent more than 20 years in active duty and the Army reserves. She also volunteered for the Maryland National Guard's Beyond the Yellow Ribbon, a program designed to help soldiers readjust after returning from overseas deployments.

Lt. Col. Warman arrived at Fort Hood less than a day before the shootings and was preparing for deployment to Iraq.

For her service, Lt. Col. Warman received the Army Commendation Medal in 2006 for meritorious service as a psychiatric nurse deployed to Landstuhl Medical Center in Germany in support of Operation Enduring Freedom and Operation Iraqi Freedom.

Roland M. Tressler Jr.

Roland M. Tressler Jr., a Fallston High School graduate, died in Baghdad, Iraq, in July 2009 during a training exercise accident while working for Blackwater Worldwide, which is now named Xe.

Mr. Tressler Jr., 29, joined the Marine Corps in January 1998, not long after graduating high school. He eventually became a sergeant.

He served for nearly six years in the Marine Corps before being discharged in September 2003. Afterward, he worked for DynCorp International, a U.S.-based private military contractor, as part of the president's personal security force. Mr. Tressler Jr. took a hiatus after DynCorp lost its contract. He later went to work for Blackwater.

Michael Wayne Heede Jr.

Originally from Delta, Pa., Sgt. Michael Wayne Heede Jr., 22, died in July 2009 while supporting combat operations in Helmand province in southern Afghanistan.

Sgt. Heede was a volunteer firefighter for a period of time for the Whiteford Volunteer Fire Company, and his mother lived in Edgewood at the time of his death.

Sgt. Heede was assigned to 1st Combat Engineer Battalion, 1st Marine Division, I Marine Expeditionary Force, in Camp Pendleton, Calif., and had been in Afghanistan since April of that year.

His was awarded with the Combat Action Ribbon, Navy Unit Commendation Medal, Marine Corps Good Conduct Medal, National Defense Service Medal, Iraq Campaign Medal, Global War on Terrorism Expeditionary Medal, Global War on Terrorism Service Medal and two Sea Service Deployment ribbons.