"All allies agree that Moscow does not have a veto against NATO enlargement," Stoltenberg told reporters as NATO foreign ministers gathered in Oslo, seeking to dispel any signs of discord ahead of the summit.
At the Vilnius summit, NATO leaders aim to send a strong message of support to Kyiv.
But with only six weeks to go, pressure is building for allies to find common ground on what exactly to offer Ukraine.
Lithuania's Foreign Minister Gabrielius Landsbergis said Kyiv had suffered two invasions while waiting for an answer from NATO for 14 years.
"Ukraine needs to get a clear path, and the next steps, on how to enter NATO," Estonian Foreign Minister Margus Tsahkna said.
Persons:
Jens Stoltenberg, Stoltenberg, Volodymyr Zelenskiy, Gabrielius Landsbergis, Margus Tsahkna, Annalena Baerbock, Luxembourg's Jean Asselborn, Sabine Siebold, Gwladys Fouche, Terje Solsvik, Benoit Van Overstraeten, Bart Meijer, Charlotte Van Campenhout, Alezander, Boldizsar, Bart H, Meijer, Ros Russell
Organizations:
NATO, Kyiv, Ukraine, Lithuania's, Estonian, Thomson
Locations:
OSLO, Moscow, Ukraine, Vilnius, Oslo, Moldova, Kyiv, Europe, United States, Germany, Russia, Estonian, Luxembourg, Hungary, NATO, Brussels, Alezander Tanas, Chisinau, Olena, Budapest