Heiligendamm, Germany ? After a torrent of sharp exchanges, President Bush tried to stop a steep slide in relations with Vladimir Putin on Wednesday by saying Russia is not a menace to Europe despite a threat to aim missiles at the West.

“Russia is not going to attack Europe,” the president said, brushing off Putin’s warning that he would reposition Russian rockets in retaliation for an American-devised missile shield to be based in Poland and the Czech Republic.

“Russia is not an enemy,” Bush emphasized. “There needs to be no military response because we’re not at war with Russia.”

A day before meeting privately with Putin here, Bush appeared eager to call a time-out in the bickering over everything from criticism about Russia’s backslide on democracy to Putin’s complaints about U.S.-backed independence for Kosovo and a supposed new arms race triggered by Washington.

“There will be disagreements,” the president said, relaxing in the sun during an interview with a handful of reporters before the annual summit of major industrialized countries. “That’s just the way life works. But that doesn’t necessarily lend itself to speculation that somehow the relationship between me and the president (Putin) is not a positive relationship. It is a positive – and I’m going to work to keep it that way.”

Asked whether he expected a tense session with Putin, Bush said: “Could be – I don’t think so, though. I’ll work to see that it’s not a tense meeting.”

The Russians projected a similar air.

Putin spokesman Dmitri Peskov said open hostility is part of a constructive relationship, even as he reiterated disagreements with U.S. views of Russian democracy and dissatisfaction with explanations about the missile shield.

Peskov promised “uncomfortable consequences” if the shield is deployed, and said U.S.-Russia ties are “not limited only by disagreements.”

But, he added, “We give ourselves the right to expect our partners to listen to our concerns.”

Bush, tieless and with his shirt sleeves rolled up, sat for the interview just hours before the opening of the Group of Eight summit with Germany, Canada, Britain, France, Italy, Japan, the United States and Russia.

The leaders gathered in Heiligendamm, a Baltic Sea town in northern Germany that was circled by seven miles of razor wire-topped fence.

Thousands of demonstrators blocked roads to the summit site, and thousands more streamed toward the fence. Police used water cannons to scatter stone-throwing protesters. Hundreds of demonstrators dressed like clowns scampered in the woods and paraded on streets.

At a pre-summit lunch, Bush discussed combatting global warming and poverty in Africa with German Chancellor Angela Merkel, the summit host. She advocates a tougher stand on climate change than Bush.

Merkel said they had a “very good debate … but I trust that we will work out joint positions.”

In the interview, Bush said he would not yield to Merkel’s proposals for mandatory caps on greenhouse gas emissions. Bush has countered with a plan for negotiations among the United States and other nations that spew the most greenhouse gases – including China and India – to set a long-term strategy by the end of next year for reducing emissions. U.S. officials said Bush was willing to move more quickly to set goals.

Bush also met with new Japanese Prime Minister Shinzo Abe and discussed North Korea’s pledge to close its sole nuclear reactor in exchange for economic aid and political concessions.

“There is a common message here and that is: We expect North Korea to honor agreements,” Bush said.