President Joe Biden is reportedly ordering the Pentagon to move more thousands U.S. troops to several eastern European nations to bolster NATO defenses amid the ongoing Russian military buildup along Ukraine’s borders.

According to U.S. officials who spoke with the Wall Street Journal, about 2,000 U.S. troops will deploy from Fort Bragg, North Carolina to Poland and Germany, while about 1,000 troops comprising a Germany-based infantry Stryker squadron will move over to Romania. Both Poland and Romania border Ukraine to the west.

The Associated Press reported a similar deployment plan, with 2,000 U.S. troops to Germany and Poland and 1,000 troops to Romania.