Twice this year, President Bush crossed the Atlantic to confirm what he had momentarily forgotten after September 11: That his allies of choice are across the Atlantic, not one country at a time but all of them together, as a Union. Mr. Blair should know that he can depend on his partner across the Atlantic to move on with this ambitious agenda of relance; but Mr. Blair's privileged partners across the Channel should also believe that they can depend on him to make of the next six months the new beginning to which they aspire, notwithstanding the public apprehensions unveiled over the past weeks.

In short, for all the differences that exist between the United States and the states of Europe, and for all the personal clashes between heads of state and government on both sides of the Atlantic, Europe matters to America, and America to Europe, because converging concerns, compatible values, and overlapping interests make of each the other"s partner of choice.

But with the Cold War a full decade behind, and with many dangerous years of an unpredictable war against terrorism looming ahead, the transatlantic connection has rarely seemed to be at the same time so uncertain and so important.

Simon Serfaty, Klaus Peter Gottwald, Thomas Donnelly, Adrian Wooldridge, Radek Sikorski ...

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Off to a New Start?George W. Bush Goes to Europe: A New Atlantic Initiative Briefing11:00 a.m.–noon

Officials in Washington and European capitals...

Europe is in turmoil following the rejection of the proposed European Union constitution by French and Dutch voters. With momentum toward a more politically unified Europe suddenly derailed, E.U. member states risk a prolonged period of introspection that will complicate cooperation with Washington on a range of issues from Iran to trade. Making matters worse, governments in Berlin and Paris are discredited and will be domestically distracted for some time to come. And the European economy is in the doldrums at a time when the United States needs Europe to share more of the burden of fueling global growth.

In the aftermath of Bloody Tuesday, the White House can painlessly modify some of its controversial international policies. But will it?

The leaders of the West must recognize that our current strategy towards Russia is failing. Our policies have failed to contribute to the democratic Russia we wished for and the people of this great country deserve after all the suffering they have endured. It is time for us to rethink how and to what extent we engage with Putin"s Russia and to put ourselves unambiguously on the side of democratic forces in Russia.