QUOTES-European leaders comment on teleconference with Trump on Ukraine

Aug 13 (Reuters) - Donald Trump joined a teleconference with European leaders including Ukrainian President Volodymyr Zelenskiy on Wednesday, two days before the U.S. leader is due to hold a summit in Alaska with Russia's Vladimir Putin to discuss how to end the war in Ukraine.

Following are some quotes from the leaders after the call:

UKRAINIAN PRESIDENT VOLODYMYR ZELENSKIY

"I told the U.S. president and all our European colleagues that Putin is bluffing (about his stated wish to end the war). He is trying to apply pressure before the meeting in Alaska along all parts of the Ukrainian front. Russia is trying to show that it can occupy all of Ukraine ...

"Everything concerning Ukraine must be discussed only with Ukraine's participation. We must be preparing a trilateral format (along with Trump and Putin) for talks.

"A ceasefire must be the number one priority ... There should be security guarantees. Truly reliable."

FRENCH PRESIDENT EMMANUEL MACRON

"President Trump was very clear that the United States wanted to achieve a ceasefire at this meeting in Alaska ...

"The second point on which things were very clear, as expressed by President Trump, is that territories belonging to Ukraine cannot be negotiated (without Ukraine's participation) and will only be negotiated by the Ukrainian president.

"There are currently no serious territorial exchange schemes on the table ...

"He (Trump) will also fight to secure a future meeting, a trilateral meeting ... I think this is a very important point ... and we hope that it can be held in Europe, in a neutral country that is acceptable to all parties."

GERMAN CHANCELLOR FRIEDRICH MERZ

"The principle that borders cannot be changed by force must continue to apply.

"Negotiations must include robust security guarantees for Kyiv. The Ukrainian armed forces must be able and remain able to effectively defend the sovereignty of their country. They must also be able to count on Western aid in the long term.

"Negotiations must be part of a common transatlantic strategy. Then they can ultimately be most likely to succeed. This strategy must continue to rely on strong support for Ukraine and necessary pressure against Russia. This also means, if there is no movement on the Russian side in Alaska, then the United States and we Europeans should ... increase the pressure.

"President Trump knows this position, he shares it very extensively and therefore I can say: We have had a really exceptionally constructive and good conversation with each other."

BRITISH PRIME MINISTER KEIR STARMER

"The prime minister was clear that our support for Ukraine is unwavering - international borders must not be changed by force and Ukraine must have robust and credible security guarantees to defend its territorial integrity as part of any deal," Starmer's Downing Street office said in a readout of the call.

NATO SECRETARY-GENERAL MARK RUTTE, POSTING ON 'X'

"Great call with @POTUS ,@ZelenskyyUA & European leaders ahead of President Trump’s meeting with Putin in Alaska. We are united in pushing to end to this terrible war against (Ukraine) & achieve just and lasting peace. Appreciate @realDonaldTrump leadership & close coordination with Allies. The ball is now in Putin’s court."

EUROPEAN COMMISSION PRESIDENT URSULA VON DER LEYEN

"We have had a very good call. Today Europe, the U.S. and NATO have strengthened the common ground for Ukraine... We will remain in close coordination. Nobody wants peace more than us, a just and lasting peace."