Why it matters:
The Cuban foreign minister’s message, issued amid heightened tensions between the United States and Venezuela, underscores the concern among Caribbean nations for preserving regional stability and preventing any state from feeling emboldened to threaten its neighbors. Bloomberg’s report on the emergence of an “invisible wall of electromagnetic noise” over the Caribbean adds to these worries, as escalating electronic interference and increased U.S. military activity pose tangible risks.
The big picture:
The Trump administration has escalated pressure on Venezuela with expanded naval deployments in the Caribbean, secret strikes on vessels under the lable of drug-trafficking assets, and a call to treat Venezuela’s airspace as fully closed. While Washington frames these actions as part of a crackdown on criminal networks, Caracas has said that they are efforts at regime change, revoking airline flight rights, mobilizing forces, and creating Nationwide Defense Commands. Venezuelan officials has warned that any U.S. attack would be “political suicide” for the country.

What he's saying:
The Cuban Foreign Minister in his social media post has wrote:
"We condemn the announcement of the #US Government of closing #Venezuela's airspace, an aggressive action for which no State has any authority beyond its borders and which should raise the strongest rejection by the international community.
This is an extremely serious threat against International Law and an increased escalation of the military aggression and psychological warfare against the people and government of Venezuela, with incalculable and unpredictable consequences for peace, security and stability in Latin America and the Caribbean.
We call on the international community and all the peoples of the world to denounce the prelude of an illegitimate attack."
Go deeper:
Venezuelan University Prof. Says Nation Stands Firm for Sovereignty
Trump Calls for Venezuela’s Airspace to be Considered 'Closed In Its Entirety'
F.abedi - Mahboubeh Habibi