LONDON — Tony Blair's long-awaited memoir says the former British prime minister doesn't regret the Iraq war -- although he wept for its victims -- and carries revelations about the politician's alcohol use, his interactions with the queen and his testy relationship with his successor.

Tony Blair's "A Journey" was stirring political passions as it hit bookstores Wednesday, with excerpts revealing that the former British prime minister cried for soldiers and civilians killed in Iraq, but still thought it was right to invade and topple Saddam Hussein.

The decision to go to war remains Blair's most divisive legacy, and Blair says "I ... regret with every fiber of my being the loss of those who died."

"Tears, though there have been many, do not encompass it," he says.

But, he adds, "on the basis of what we do know now, I still believe that leaving Saddam in power was a bigger risk to our security than removing him and that, terrible though the aftermath was, the reality of Saddam and his sons in charge of Iraq would at least arguably be much worse."

"I can't regret the decision to go to war," he says.

Blair also reopens domestic political wounds, saying he his rival, colleague and successor Gordon Brown was a difficult and maddening man with "zero" emotional intelligence.

He's much warmer about former U.S. President George W. Bush, calling him intelligent, "a true idealist" and a man of integrity.

British booksellers are reporting heavy interest in the book, for which Blair was paid an estimated 4.6 million pounds ($7.5 million). He's donating the proceeds to a charity for injured troops.

Billed by publisher Random House as a "frank, open" account of life at the top, "A Journey" is being published in a dozen countries, alongside an e-book and an audio version read by Blair himself. It was No. 1 Wednesday on Amazon's British best-seller list -- though it's only 180 on the retailer's U.S. site.

Blair -- who was in Washington on publication day, attending Israeli-Palestinian peace talks in his role as an international Mideast envoy -- has said he "set out to write a book which describes the human as much as the political dimensions of life as prime minister."

"A Journey" promises to give readers behind-the-curtain insights into major world events from the death of Princess Diana to the Sept. 11 attacks and the invasion of Iraq.

It is unlikely to resolve the conflicting views and emotions Blair evokes.

For many Americans, he remains a well-regarded ally who stood shoulder-to-shoulder with the U.S. in the fight against international terrorism. He's scheduled to receive the 2010 Liberty Medal from former President Bill Clinton in Philadelphia on Sept. 13.

At home, he is a more polarizing figure. Swept to power in 1997 on a wave of popular enthusiasm, Blair left office a decade later reviled by many for taking Britain into the U.S.-led Iraq war, and viewed as a liability by much of his own Labour Party.

"He began as a leader who was a friend of everyone, and he finished as a friend of almost no one in Britain," said Blair biographer Anthony Seldon.

Anti-war groups say they will picket Blair's book signings in Dublin on Saturday and in London on Sept. 8. Both are high-security affairs at which book buyers will have to surrender their bags, cameras and mobile phones -- and are barred from asking for personal dedications.

Blair, 57, stepped down in June 2007 after a decade that included a historic peace accord in Northern Ireland, the deeply unpopular war in Iraq and the continuing conflict in Afghanistan.

He was Labour's most successful leader for decades, moved the left-leaning party toward the center and brought it back to power after 18 years in opposition.

But when he left, after years of increasingly open hostility with Brown, his party was divided.

In the book, Blair calls Brown "difficult, at times maddening," but says "he was also strong, capable and brilliant."

"Political calculation, yes," Blair writes. "Political feelings, no. Analytical intelligence, absolutely. Emotional intelligence, zero."

Brown, and Labour, lost power in an election in May, and Blair does not exactly heap praise on his time in office.

"It is easy to say now, in the light of his tenure as prime minister, that I should have stopped it; at the time that would have been well nigh impossible," Blair writes.

He also details his interaction with Queen Elizabeth II in the aftermath of Princess Diana's death, when support for the British monarchy was at a low ebb. Blair said he tried to get the queen to make a public statement and worried that she found him "presumptuous." For his part, he said she was "a little haughty."

Elsewhere, Blair speaks of his relationship with alcohol, saying he drank "a whisky or a gin and tonic before dinner, then one or two glasses of wine." Blair said that while he believed he controlled his intake, he had been aware that drink was becoming "a support."