Were he to follow through on his promise, it would represent a sea-change for Slovakia, until now a staunch ally of its eastern neighbour Ukraine in its war against Russia.
Bratislava has supplied weapons and offered strong political support to Kyiv within the European Union and NATO.
Western diplomats and officials in Kyiv also say a small country like Slovakia can only go so far in upending EU and NATO policy.
Disinformation, meanwhile, has spread, undermining public support for Ukraine since Russia's full-scale invasion of 2022, said Katarina Klingova of think-tank Globsec.
The hoax was debunked, but the reaction pointed to the influence that false information surrounding the Ukraine war has among Slovakia's 5.5 million population.
Persons:
Robert Fico, Radovan Stoklasa, Robert Fico's, Fico, Eleonora Tanacova, Viktor Orban, Orban, Katarina Klingova, Klingova, Andrew Gray, Thomas Balmforth, Mike Collett, White, Gareth Jones
Organizations:
REUTERS, NATO, EU, European Union, Russia, Moscow, Hungarian, Progressive, Ukraine, Thomson
Locations:
Banovce nad Bebravou, Slovakia, Russian, Ukraine Brussels, Ukraine, Slovakian, Russia, Bratislava, Kyiv, Crimea, EU, Brussels, Moscow, Donbas, Luhansk, Western, Europe, Hungary, Progressive Slovakia