FORT MEADE, Md. — Lawyers for a young Army private accused of leaking a trove of classified information to the website WikiLeaks said Tuesday that military prosecutors have withheld hundreds of emails related to his pretrial detention at a Marine Corps brig.

David Coombs, a lawyer for Pfc. Bradley Manning, argued at a pretrial hearing that prosecutors have yet to turn over about 700 emails in their possession. But he said the emails he's already aware of paint a portrait of a military more concerned with combating negative publicity than with Manning's welfare and reveal that high-level officials, including a three-star general, were briefed about the conditions of his confinement.

Prosecutors denied that the military was driven by public relations concerns and said the general had been justifiably anxious about Manning, especially because he was considered a suicide risk at the time. He has since been transferred.

Manning, 24, is accused of providing to WikiLeaks hundreds of thousands of diplomatic cables and Iraq and Afghanistan war logs while working as an intelligence analyst in Baghdad in 2009 and 2010. He faces a possible life sentence. Military prosecutors and defense lawyers have been hashing out procedural and evidentiary disputes during an ongoing pretrial hearing ahead of a trial scheduled for early next year.

At issue Tuesday were nearly 1,400 emails pertaining to Manning's maximum-security detention at the Marine Corps brig in Quantico, Va. While there, he was confined to a single-bed cell for 23-hours a day. His clothing was taken from him for several nights until he was issued a suicide-prevention smock. The conditions mobilized and infuriated Manning supporters, who alleged torture and said he was illegally punished. He has since been relocated to medium-security confinement at Fort Leavenworth, Kansas.

Coombs said Manning was confined in such a way to prevent anything bad from happening to him, which the military knew would generate a crush of negative publicity.

"The main thing they were concerned about was being portrayed in a negative light," he said.

He also said a three-star general was briefed in unusual detail about Manning's stay.

"What he's being briefed on is not something you would expect a three-star general to be briefed on," he said, adding, "He's being briefed on when I call, he's being briefed on when people (who support Manning) are being turned away at the front gate."

Ashden Fein, a military prosecutor, said the emails didn't support Coombs' theory or allegations. He said there was nothing unusual about a general being given regular briefings about an individual soldier's confinement, especially one who was considered a suicide risk.

"A commander being notified of what's going on (in) his installation is the way the military works," Fein said.

Coombs also accused prosecutors of allowing the emails to "collect dusk" for at least six months despite defense lawyers' requests to see them. Fein said prosecutors had other pressing priorities.

Prosecutors last month turned over 84 emails related to the Quantico detention and provided an additional 600 or so this week.

Army Col. Denise Lind, who is presiding over the hearing, directed prosecutors to provide her with the remaining 700 emails, and she said she would individually review them to determine which ones were relevant and could be disclosed.

The hearing continues Wednesday.

Lind dealt defense lawyers a blow last month when she largely barred Manning from presenting evidence at his trial that the mountain of classified information he's accused of leaking did little harm to U.S. national security and foreign relations.

WikiLeaks, which has published numerous international diplomatic and military secrets, sees its mission as revealing secret information to the public.

Also on HuffPost:

Loading Slideshow...
  • Start of War: Oct. 7, 2001

    <em>American soldiers hide behind a barricade during an explosion, prior to fighting with Taliban forces November 26, 2001 at the fortress near Mazar-e-Sharif, northern Afghanistan. (Photo by Oleg Nikishin/Getty Images)</em>

  • Number of U.S. Troops in Afghanistan: 88,000

    <em>US Marines with the 26th Marine Expeditionary Unit deployed from the USS Bataan's Amphibious Ready Group arrive December 14, 2001 at an undisclosed location with field gear and weapons. (Photo by Johnny Bivera/Getty Images)</em>

  • Number of Troops at War's Peak

    <em>U.S. Marines begin to form up their convoy at a staging area near Kandahar, Afghanistan, as they await orders to begin their trek to Kandahar to take control of the airfield 13 December, 2001. (DAVE MARTIN/AFP/Getty Images)</em><br><br> Number of U.S. troops in Afghanistan at the war's peak: About 101,000 in 2010. Allies provided about 40,000.

  • Withdrawal Plans

    <em>U.S. President Barack Obama delivers a televised address from the East Room of the White House on June 22, 2011 in Washington, D.C. (Pablo Martinez Monsivais-Pool/Getty Images)</em><br><br> Withdrawal plans: 23,000 U.S. troops expected to come home by the end of the summer, leaving about 68,000 in Afghanistan. Most U.S. troops expected to be out of Afghanistan by the end of 2014, though the U.S. is expected to maintain a sizeable force of military trainers and a civilian diplomatic corps.

  • Number of U.S. Casualties

    <em>American flags, each one representing the 4,454 American soldiers killed in the Iraq and Afghanistan wars, move in the breeze at The Christ Congregational United Church March 17, 2008 in Miami, Florida. (Photo by Joe Raedle/Getty Images)</em><br><br> Number of U.S. casualties: At least 1,828 members of the U.S. military killed as of Tuesday, according to an Associated Press count. According to the Defense Department, 15,786 U.S. service members have been wounded in hostile action.

  • Afghan Civilian Casualties

    <em>Asan Bibi, 9, sits on a bench as burn cream is applied to her at Mirwais hospital October 13, 2009 Kandahar, Afghanistan. She, her sister and mother were badly burned when a helicopter fired into their tent in the middle of the night on October 3rd, according to their father. (Photo by Paula Bronstein/Getty Images)</em><br><br> Afghan civilian casualties: According to the United Nations, 11,864 civilians were killed in the conflict between 2007, when the U.N. began reporting statistics, and the end of 2011.

  • Cost of the War

    <em>An Iraqi man counts money behind a pile of American dollars in his currency exchange bureau in Baghdad on April 11, 2012. (ALI AL-SAADI/AFP/Getty Images)</em><br><br> Cost of the war: $443 billion from fiscal year 2001 through fiscal year 2011, according to the Congressional Research Service.

  • Number of Times Obama Has Visited Afghanistan

    <em>US President Barack Obama speaks to troops during a visit to Bagram Air Field on May 1, 2012 in Afghanistan. (MANDEL NGAN/AFP/Getty Images) </em><br><br> Number of times Obama has visited Afghanistan: 3 as president, including Tuesday, and 1 as a presidential candidate.