Home2018 Treaties and Agreements ...Niger (18-126) – Millennium Challenge Compact hide Niger (18-126) – Millennium Challenge Compact TIAS Office of Treaty Affairs January 26, 2018 Foreign Assistance Millennium Challenge Compact signed at Washington July 29, 2016; entered into force January 26, 2018. With annexes. Download attachment [4 MB] Tags Foreign Assistance Millennium Challenge Niger Treaties