On 17 September, CNN reported that Biden had signed a new Executive Order authorising broad sanctions against those involved in perpetrating the ongoing conflict in Ethiopia as reports of atrocities continue to emerge from the Tigray region. The US did not immediately impose sanctions under the new Order, but said that it was “prepared to take aggressive action” unless the parties – including the Ethiopian government, the Eritrean government, the Tigray People’s Liberation Front, and the Amhara Regional Government.
OFAC also issued 3 General Licenses permitting certain transactions, and associated FAQ.
https://edition.cnn.com/2021/09/17/politics/biden-ethiopia-eo/index.html
https://content.govdelivery.com/accounts/USTREAS/bulletins/2f1fed7
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