That phase of escalation only works if there is still opposition within the government and institutions.
The military still may have a card to play,...
Found the phase III data: https://www.nejm.org/doi/10.1056/NEJMoa2034577?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub%20%200pubmed...