Secretary of State John Kerry has announced that Syria has made good on its promise to hand over all of its chemical weapons.

According to the OPCW, or the Organization for the Prohibition of Chemical Weapons, the last stockpile of Syria's chemical weapons has been shipped out of the country.

Ahmet Uzumcu, chief of the international watchdog organization, said the final 8 percent of Syria's chemical weapons were loaded Monday to be transported to the Syrian port of Latakia.

"The last of the remaining chemicals identified for removal from Syria were loaded this afternoon aboard the Danish ship Ark Futura," Uzumcu said in a statement. "A major landmark has been reached today.

"We cannot say for sure it has no more chemical weapons," Uzumcu said. "All we can do is work on the basis of verifying a country's declarations of what they have. I would not make any speculation [as] to possible remaining assets, substances [or] chemical weapons."

In response, Defense Secretary Chuck Hagel said in a statement, "The United States and our international partners will now work to destroy these materials so they never again pose a threat to the Syrian people or America's allies in the region -- an outcome that was hard to imagine a year ago," Military.com reported.

In 2013, President Barack Obama declared that the Syrian government had crossed a "red line" by using chemical weapons on its citizens during the ongoing civil war, which began in 2011.

Although the chemical weapons have been removed, the horrific war in Syria continues to worsen, and the death toll is reported to be over 150,000. Prisons and makeshift detention facilities are overpopulated, executions and deaths from torture are widespread, and people are starving to death.