“14.10.63 Assistant Secretary of State for Inter-American Affairs, Edwin Martin, started a series of exchanges with Britain, Canada, Mexico and Spain to exert ‘relentless pressure’ on airlines links with Havana. Even though few carriers were still flying to Havana, the United States wanted to break all links with the island. Britain refused to ban flights [from] Cuba to Grand Cayman but agreed to increase control over them. Canada refused to cut air links with Cuba, but agreed to the search of Cuban aircraft laying over for fuel re-supply en route to and from Havana and Prague. Mexico agreed to postpone Cuban landing rights in its territory, but maintain its national carrier’s weekly flights to Havana… [Pro Embargo]
“John F. Kennedy (D). Timeline,” Cuba versus Blockade: Cuban People’s website, 2007