WASHINGTON -- In a memoir, Gen. Stanley A. McChrystal, the former U.S. commander in Afghanistan, writes that tensions between the White House and the Pentagon were evident in the Obama administration from its opening months in office.
The beginning of President Barack Obama's first term "saw the emergence of an unfortunate deficit of trust between the White House and the Department of Defense, largely arising from the decision-making process on Afghanistan," Mr. McChrystal writes in the book, titled "My Share of the Task: A Memoir". "The effects were costly."
The book by Mr. McChrystal, who was fired from his post in 2010 after an article in Rolling Stone quoted him and his staff making dismissive comments about the White House, is likely to disappoint readers who are looking for a vivid blow-by-blow account of infighting within the administration.
The book does not provide an account of the White House meeting at which Mr. Obama accepted the general's resignation. Mr. McChrystal's tone toward Mr. Obama is respectful, and he notes that his wife, Annie, joined the crowd at Mr. Obama's inauguration. The book is to be released Monday.
An advance copy of the book provides revealing glimpses of the friction over military planning and comes as Mr. Obama is weighing, and perhaps preparing to overrule, the troop requests that have been presented by the current U.S. commander in Afghanistan, Gen. John R. Allen.
The account is all the more noteworthy since Mr. McChrystal, who retired from the Army, remains a respected voice within the military and teaches a course on leadership at Yale University.
According to the book, the tensions began before then-Gen. McChrystal took command in Kabul, Afghanistan, and were set off by a request from his predecessor, Gen. David D. McKiernan, for 30,000 additional troops at the end of the Bush administration.
Instead of approving the entire request, in February 2009, Mr, Obama decided that 17,000 would be sent, adding that decisions on additional deployments would be based on further analysis.
From the White House perspective, Mr. McChrystal writes, "this partial decision was logical." After less than a month, the president had increased U.S. forces in Afghanistan by 50 percent. Though Mr. Obama had cast the conflict in Afghanistan as a "war of necessity," as a candidate he was nonetheless wary about a prolonged U.S. military involvement there.
But the Pentagon pressed for an additional 4,000 troops, fearing that there was little time to reverse the Taliban's gains before the August elections in Afghanistan.
"The military felt a sense of urgency, seeing little remaining time if any forces approved were to reach Afghanistan in time to improve security in advance of the elections," he wrote.
The White House later approved the 4,000 troops, but the dispute pointed to a deeper clash of cultures over the use of force that continued after Mr. McChrystal took command.
"Military leaders, many of whom were students of counterinsurgency, recognized the dangers of an incremental escalation, and the historical lesson that 'trailing' an insurgency typically condemned counterinsurgents to failure," he writes.
In May 2009, soon before he assumed command in Kabul, Mr. McChrystal had a "short, but cordial" meeting with Mr. Obama at which the president "offered no specific guidance," he notes.
The next month, Mr. McChrystal was surprised when James L. Jones, Mr. Obama's first national security adviser, told him that the Obama administration would not consider sending more forces until the effect of arriving units could be fully evaluated.
That contradicted the guidance that Mr. McChrystal had received from Defense Secretary Robert M. Gates that he should submit an assessment in August of the additional forces that might be required, he writes.
At an Oct. 8, 2009, video conference with Mr. Obama's National Security Council, differences again emerged when Mr. McChrystal outlined his goals: "Defeat the Taliban. Secure the population."
That prompted a challenge by a Washington-based official, whom Mr. McChrystal does not name, that the goal of defeating the Taliban seemed too ambitious and that the command in Kabul should settle instead for an effort to "degrade" the Taliban.
Mr. McChrystal acknowledges that he had concerns that Mr. Obama's decision to announce a date for beginning the withdrawal of the additional "surge" forces might embolden the Taliban. But the general writes that he did not challenge the decision.
Mr. McChrystal has little to say about the episode that led to the article in Rolling Stone. He writes that the comments attributed to his team were "unacceptable" but adds that he was surprised by the tone of the article, which he had expected would show the camaraderie among the U.S., British, French and Afghan officers.
As the controversy over the article grew, Mr. McChrystal did not seek advice before offering his resignation. The book does not say if he was disappointed when Mr. Obama accepted it at a brief White House meeting.