Slovakia’s pro-Russian prime minister has raised the prospect of his country leaving the European Union and Nato, arguing that world events could consign them to the “history books”.

Slovakia's opposition accused Prime Minister Robert Fico on Tuesday of laying the groundwork to take the country out of the European Union, but dropped its no-confidence motion to dismiss him and his leftist-nationalist government.

"I have no problem with a delegation from Progressive Slovakia going to Kyiv," Fico said in his video message. “If you have no authority or responsibility, you can conduct negotiations even on a space station on Mars.