How US equivalent classification level to a foreign government's level of restricted is?

In the U.S., the equivalent classification level to a foreign government's "restricted" level typically aligns with "Confidential." Both classifications involve information that, if disclosed, could cause damage to national security. However, the specific equivalence can vary based on the context and the nature of the information involved. It's essential to consider the particulars of both countries' classification systems for accurate comparisons.