WARSAW, Sept. 2 (Xinhua) -- The absence of the U.S. leadership at Tuesday's World War Two anniversary ceremony in Gdansk of Poland was "a lesson in realism" for Poland, Polish Foreign Minister Radoslaw Sikorski said on Wednesday.

    "I think this is a lesson in realism. This must be viewed with American eyes," Sikorski said, noting that the United States today had to deal with serious problems like the financial crisis, the Mideast and Afghanistan and was paying less attention to Poland as it was not a problem hotbed.

    "From the U.S. point of view, everything in Poland is going well, and they simply don't share our sensitivity on these matters, and this is something we must be aware of in our politics," Sikorski was quoted as saying by the Polish news agency PAP.

    On the eve of Tuesday's World War Two anniversary ceremony in Gdansk, the White House informed Poland that the U.S. delegation to the event would be headed by James Jones, a retired general and head of the U.S. National Security Council.

    Last week Polish government aide Slawomir Nowak said the delegation head to Gdansk would be former defense secretary William Perry. This brought protests from Poland's opposition, who claimed that the absence of higher-ranking U.S. officials at the ceremony meant Poland was unimportant for the United States.

    Commenting the opposition's protests, Sikorski, who talked with Jones on Tuesday, warned against "falling into extremes" in relations with the United States. "We shouldn't oscillate between unconditional devotion and bitterness and disenchantment," the minister said.

    Sikorski's remarks come amid nervousness in Poland that the Obama administration is preparing to drop plans to build a missile interceptor site on Polish soil.

    Under a Polish-U.S. accord signed last year, 10 ground base interceptors are to be installed in Redzikowo, northern Poland, as part of a larger U.S. missile defense system that would also include a radar system in the Czech Republic.

    Russia objects to the anti-missile shield plan, warning it will deploy a short-range missile system in its Baltic enclave of Kaliningrad bordering Poland, in response to the U.S. plans.