Secretary of State shall prioritize efforts to ensure that United States diplomatic missions in countries in which the Wagner Group poses a national security threat have sufficient financial and human resources to engage in effective public diplomacy to counter the influence of the Wagner Group and other Russian mercenary proxy groups. (c) Branding and marking United States foreign assistance The Secretary of State, the Administrator of the United States Agency for International Development, and the heads of other relevant Federal departments and agencies should— (1) prescribe the use of the United States flag to identify, consistent with section 641 of the Foreign Assistance Act of 1961 ( 22 U.S.C. 2401 ), all foreign assistance provided by the United States to countries in which the Wagner Group poses a national security threat