Parnell said investigators have been digging through an enormous volume of records as they attempt to reconstruct the decisions surrounding the withdrawal. According to him, the deeper investigators go, the more unanswered questions they encounter.
“The deeper we look, the more there is to look at. We are finding things that we did not expect. Recently, my team recovered highly relevant classified documents, material that should have been disclosed, stashed and hidden away in safes where they would not be found,” Parnell said. “And after the team reviewed these documents, it became clear why someone tried to hide them.”
The statement immediately raises questions about what the records contain and why they were allegedly kept in secure locations rather than made available to investigators or subjected to broader review.
For now, however, Parnell has not disclosed the substance of the documents. He did not identify where the records were found, who had placed them in safes, or whether anyone has been accused of deliberately concealing them.
He also did not announce whether the material could eventually be declassified and released to the public.
Those unanswered questions are likely to remain a central part of the investigation as the review panel continues its work.
The panel was created under War Secretary Pete Hegseth to conduct a fresh examination of the decisions that led to the U.S. military’s final withdrawal from Afghanistan in August 2021.
The investigation has reportedly involved interviews with military personnel who participated in planning and carrying out the operation. Investigators have also reviewed approximately 9 million documents, giving the panel an enormous amount of material to examine.
Parnell has previously raised concerns about the classification of information surrounding the withdrawal. He described an earlier investigation as having been “over-classified at the highest levels, which effectively kept the most critical and relevant information from public scrutiny.”
That criticism points to one of the major questions surrounding the current review: whether previous investigations had access to all of the information necessary to provide a complete accounting of what happened.
The 2021 withdrawal remains one of the most controversial chapters of America’s military involvement overseas. The operation came after the United States reached an agreement with the Taliban in 2020 and the Biden administration moved forward with completing the American military drawdown.
As U.S. forces prepared to leave, the Afghan government and military collapsed with startling speed. The Taliban swept across the country, eventually taking control of Kabul.
The United States then launched an emergency evacuation operation centered around the Kabul airport. Thousands of Americans and Afghan allies sought to escape the country as American forces worked under extraordinary pressure to complete the withdrawal.
Bagram Air Base, a major American military installation during the war, was also handed over before the final withdrawal from Afghanistan.
The evacuation ultimately became synonymous with both the enormous logistical effort required to move people out of a collapsing country and the devastating consequences of the operation’s final days.
The Abbey Gate bombing became the most tragic symbol of that chaos.
Five years later, Parnell said the panel’s responsibility extends beyond simply reviewing paperwork. He specifically addressed the American service members who participated in the withdrawal and said they deserve a complete explanation of what happened.
“They are owed the full picture of how and why those decisions were made, and we’re going to give it to them,” he said. “I’m not going to give you a convenient version of the truth, nor will I give you a rushed one. Here is my commitment. We are following the evidence to wherever it leads and to whoever it touches.”
Parnell further emphasized that investigators would not settle for answers simply because they were politically or institutionally comfortable.
The panel’s findings could therefore have implications well beyond the historical record. A fuller understanding of the withdrawal could help determine how major decisions were made, what information senior officials had available at the time and whether critical warnings or records were overlooked.
Parnell’s latest disclosure does not, by itself, establish that anyone deliberately concealed wrongdoing. The contents of the recovered documents have not been publicly released, and the circumstances surrounding their storage remain undisclosed.
But the discovery adds another significant development to an investigation already examining millions of records and interviewing individuals directly involved in the withdrawal.
Previous after-action reviews by the Pentagon and other government agencies examined different aspects of the operation, while some records remained classified.
The new review is now looking deeper into those records and the testimony of those who were there.
And according to Parnell, investigators are prepared to continue following the evidence—regardless of where it leads.
