Nato’s eastern European members will join forces to increase pressure on the military alliance to station permanent bases in their countries, amid fears over increased Russian aggression in the region.

Countries along the alliance’s eastern flank, stretching from Estonia in the north to Bulgaria in the south, will meet at a summit in early November, an aide to Poland’s president said on Monday, in the first sign of concrete actions by eastern states to lobby for a larger Nato presence.

Poland has long argued for permanent bases on its territory, and Andrzej Duda, the new president, has made it a central focus of his term in office. But some western states such as Germany are opposed to the idea, fearful of antagonising Moscow and heightening the tension between Europe and Russia.

Mr Duda told the Financial Times last week that Nato should not treat Poland as a “buffer zone”. The Polish president will host the biennial Nato summit in Warsaw next year, where a proposal for new permanent bases in eastern Europe will top the agenda.

“Today, when we look at the dispersion of bases . . . then the borderline is Germany,” said Mr Duda, who was sworn in as president on August 7. “Nato has not yet taken note of the shift . . .  of Poland from the east to the west.”

Leaders from Estonia, Latvia, Lithuania, Poland, the Czech Republic, Slovakia, Hungary, Bulgaria and Romania will convene at a summit on November 3 and 4 in Bucharest, Mr Duda’s foreign policy chief Krzysztof Szczerski said on Monday.

“A consensus within Nato needs to a greater extent to reflect Poland’s point of view,” Mr Szczerski said.

On Monday Mr Duda’s office also announced that his first official foreign visit will be to Estonia on August 23, a symbolic and politically charged date that marks the 76th anniversary of the signing of the Molotov-Ribbentrop Pact between Nazi Germany and the Soviet Union, a secret agreement that laid out plans to divide eastern Europe between them.

Poland and the Baltic states have been the most vocal critics of Russia’s annexation of Crimea and actions in the conflict in eastern Ukraine. They argue that a more robust response from Nato is necessary to allay fears that other members could also be in danger.

In June the US military said it was considering a plan to store heavy weapons and equipment in eastern Europe, in what would be the first such deployment in the former Warsaw Pact nations since the end of the cold war.

However Berlin has argued that any permanent deployment of alliance forces in Poland or other eastern states would contravene a 1997 agreement with Russia. Warsaw says Russia’s actions in Ukraine, and its invasion of Georgia in 2008, make that agreement moot.

Mr Duda’s office said that he will travel to meet the German president and chancellor on August 28, where he is likely to attempt to soften Berlin’s opposition to his proposals. Mr Duda will also make an official visit to the UK and attend the UN General Assembly in New York during September.