The reopening of embassies mark the US’ acknowledgement the existence and legitimacy of Cuba.

Peter Kornbluh directs the Cuba Documentation Project at the National Security Archive in Washington, DC and is co-author, with William LeoGrande, of ... the new book, 'Back Channel to Cuba: The Hidden History of Negotiations Between the United States and Cuba.'
The reopening of embassies mark the US’ acknowledgement the existence and legitimacy of Cuba.
Obama administration’s decision paves the way for a new future of civil diplomatic ties between Washington and Havana.