U.S. officials and an intelligence document have found Russia’s Kremlin planning a multifront offensive against Ukraine with up to 175,000 troops, which could begin as early as next year.

The unclassified U.S. intelligence document shows Russian forces massing in four locations. The U.S. map puts the number of Russian troops near the Ukrainian border at 70,000, but it predicts a buildup to as many as 175,000. The map also describes extensive movement of battalion tactical groups to and from the border “to obfuscate intentions and to create uncertainty,” according to the Washington Post.