As other South and Central American countries deny them entry, 4,500 more Cubans are stranded in Costa Rica as they try to go to the United States.

According to USA Today, Nicaraguan authorities blocked them from entering the country, while Guatemalan officials declared that they would not allow Cubans to pass through their nation to reach the US. Belize on Tuesday denied the planned "air bridge" that could have gave Cubans passage to reach the US.

NPR reported that there are more than 70,000 Cubans leaving their country to escape the Castro regime, in what may be the largest numbers of Cuban migration in decades. In the 80s, Cubans were directly headed to Florida in their rickety rafts.

In this generation, Cubans are going through South America to take a treacherous journey to reach the Southern U.S. border. However, allies of Cuban leader Raul Castro has cut off that route, leaving hordes of Cubans stranded.

On the bright side, ABC News wrote that Costa Rican President Luis Guillermo Solis on Wednesday assured the sucked Cubans that his country will not forcibly return the stranded migrants back to their home country.

Soli said, "Like you, I feel very disappointed that Guatemala, as well as Belize have denied passage through their territory to arrive in Mexico and from there continue on to your destination in the United States."

The Cuban Adjustment Act is a U.S. federal law enacted in 1966 that allows Cuban immigrants become legal and permanent residents by simply touching U.S. soil. This is why Cubans would do almost anything just to reach the nation.

After the Cuban government easer travel regulations, more of its citizens can easily fly to other South American countries without visas. From there, they would take a perilous journey by land to the US.

The Customs and Border Protection reported that there were 17,470 Cuban immigrants who presented themselves at the US- Mexican border in 2014. That number doubled to 30,966 in 2015.