The U.S. decision to authorise long-range Ukrainian strikes could help Kyiv defend the foothold in Russia’s Kursk region that it seized as leverage in any war talks, but may come too late to change the course of the war, analysts said.

Two months before leaving office, President Joe Biden lifted some restrictions that have blocked Kyiv from using U.S.-supplied weapons for strikes deeper into Russian territory, in a major policy change, Reuters reported on Sunday.

Military analysts said the impact on the battlefield, where Ukraine has been on the back foot for months, would depend on what limits remained. But while the shift may shore up the Kursk operation, it was unlikely to be a gamechanger overall.

“The decision comes late, and like other decisions in this vein, it may be too late to substantially change the course of the fighting,” said Michael Kofman, a senior fellow at the Carnegie Endowment for International Peace in Washington.