MEXICO CITY — After 53 years of hostility between the United States and Cuba, the timing to make amends was perfect for both governments.
The breakthrough in US-Cuban relations came with the release of American Alan Gross and an unnamed US intelligence agent, and the freeing of three jailed Cuban agents. The longtime enemies announced they would move toward full diplomatic relations, and Washington said it would ease economic and travel restrictions.
The surprise moves come as President Barack Obama is turning his attention to legacy issues, and Raul Castro is trying to boost his nation's economic fortunes in the face of stalled reforms and falling oil prices that have hit his allies hard.
"After today, everything changes," said Carlos Alzugaray, a former Cuban diplomat who lives on the island and has close relations with the Castro government.
"This promises to be the biggest shift in our relations in 50 years," said Ted Henken, an analyst and author of "Entrepreneurial Cuba," which examines the economic and social changes Castro has instituted since taking over from his more famous brother in 2006.
Those changes have allowed Cubans to buy and sell property, purchase a car, travel abroad without permission, open their own businesses and hire employees. But the reforms have fizzled recently due to Cubans' lack of cash.
Cuba's moribund economy grew by just 1.4 percent this year, according to the government's own estimates, and many private businesses that opened to fanfare in the last couple of years have closed. A recent foreign investment law so far has failed to attract much capital.
Meanwhile, the dramatic slide in global oil prices has cratered the economy of Cuba's main benefactor, Venezuela, which supplies the island with about $3 billion a year in heavily subsidized oil. Another key ally, Russia, also is in economic turmoil.