Polish President Lech Kaczynski has signed the
European Union's much-delayed Lisbon Treaty.
His signature means the treaty, which is intended to streamline
decision-making, remains un-ratified by only one country, the Czech
Republic.
It must be ratified by all 27 member states before it can come
into force.
Mr Kaczynski, a noted Eurosceptic, said he was convinced the
treaty would be successful but that the EU should remain a union of
sovereign states.
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The treaty's prospects of coming into force received a major
lift last week when Irish voters approved it in a second
referendum.
But the Czech President Vaclav Klaus then raised fresh doubts
when he said he would not sign the treaty unless his country was
granted an opt-out from the EU's Charter of Fundamental Rights.
Mr Klaus raised fears about possible property claims by Germans
expelled from the then Czechoslovakia after World War II.
'Historic'
Mr Kaczynski said in a speech just before the signing he was
"deeply convinced" that the "great experiment" of the treaty would
be successful.
"The fact that the Irish people changed their minds meant the
revival of the treaty, and there are no longer any obstacles to its
ratification," he said.
"Today is a very important day in the history of Poland and the
European Union."
But he said that the EU was a "union of sovereign states" and
should remain so, adding that it remain open to new members such as
countries of the former Yugoslavia and Georgia.
European Commission President Jose Manuel Barroso, European
Parliament speaker Jerzy Buzek and Swedish Prime Minister Fredrik
Reinfeldt, whose country holds the EU's rotating presidency,
attended the Polish ceremony.
Welcoming the Polish signing, Mr Reinfeldt said that the EU
"eagerly awaits" the full ratification of the treaty.
"We do not need more delays," he said.
The BBC's Jonny Dymond in Brussels says that Mr Kaczynski's
signature leaves the Czech Republic, and in particular its
Eurosceptic president, entirely isolated.
But, he says, that appears not to concern Mr Klaus.
The president is insisting on a "footnote" being added to the
text so as to exempt his country from the Charter of Fundamental
Rights much like Poland and the UK already are, our correspondent
says.
"Before ratification, the Czech Republic must, additionally at
least, negotiate a similar exemption," Mr Klaus was quoted by the
Reuters news agency as saying on Friday. "I believe that this
exemption can be resolved quickly."
He said the charter would "allow [claimants] to circumvent Czech
courts and place, for example, property claims by people expelled
after World War II directly at the European Court of Justice".

[President Klaus has compared EU institutions to the old Soviet
bloc]
Mr Klaus has said previously that he will not sign the treaty
until the Czech Constitutional Court rules on a new legal complaint
against it, lodged by senators allied to him.
The Czech parliament has already approved the treaty and his
critics note that it is the government, not the president, who
negotiates international treaties.
Nevertheless, President Klaus's move has already had an impact
in Brussels, our correspondent adds.
Officials say the next summit at the end of October will now
probably be devoted solely to dealing with Czech objections, rather
than selecting people for the new posts created by the Lisbon
Treaty.
France has already expressed opposition to Mr Klaus's
demand.
Supporters of the treaty are also concerned that if Mr Klaus
holds up the treaty, Britain's opposition Conservatives may fulfil
their pledge for a referendum on it should they come to power.
A UK general election must be held by June next year.
At the Conservative party conference this week, shadow foreign
secretary William Hague restated its opposition to the treaty,
saying the EU should not place its own president above any
nation's.
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