The withdrawal goes into effect at the end of 2018.
The United States announced its withdrawal from the United Nations Educational, Scientific and Cultural Organization (UNESCO) on Thursday, withthe State Department citing among other issues a "continuing anti-Israel bias", prompting Israeli Prime Minister Benjamin Netanyahu to order the Foreign Ministry to prepare its own withdrawal and Ambassador to the UN Danny Danon to hail "a new era in the UN".
"At the time when conflicts continue to tear apart societies across the world, it is deeply regrettable for the United States to withdraw from the United Nations agency promoting education for peace and protecting culture under attack", she said.
Bokova recalled that in 2011, when the U.S. suspended payment of its membership contributions, she was convinced that the UNESCO never mattered as much for the United States or vice versa.
While the U.S. stopped funding Unesco after it voted to include Palestine as a member in 2011, the state department has maintained a Unesco office at its Paris headquarters and sought to weigh in on policy behind the scenes.
The US has announced it will withdraw from the United Nations Scientific and Cultural Organization, accusing the body of "anti-Israel bias".
In 2011 the United States cut its funding to the agency - slashing its budget by 22 percent - in protest at its decision to grant full membership to the Palestine.
UNESCO is best known for designating World Heritage Sites such as the ancient city of Palmyra in Syria and the Grand Canyon National Park.More news: Eminem destroys Donald Trump with cypher at BET Awards
Some of the United States's closest allies are among UNESCO's 195 members.
He said: "Unesco has become a battlefield for Israel bashing and has disregarded its true role and objective". The U.S. stopped making payments to the agency in 2011, but maintained an office at its Paris headquarters in the hopes of encouraging a change of course from behind the scenes.
UNESCO is a specialized agency in the United Nations that encourages global peace and security through education, science, culture and communication.
In recent years, Israel has repeatedly complained about what it says is the body taking sides in disputes over cultural heritage sites in Jerusalem and the Palestinian territories.
Bokova released a statement in light of the news. UNESCO and most of the U.N.is hopefully corrupted.
She said the USA pulling out is a loss for the United Nations and for worldwide alliances.
But according to Nikki Haley, the US ambassador to the United Nations, the Trump administration found it to be a step too far when the agency decided this summer to designate "the Old City of Hebron and the Tomb of the Patriarchs as part of Palestinian territory".
United Nations Secretary General António Guterres expressed deep regret over the USA decision to leave UNESCO, according to Deputy UN Spokesperson Farhan Haq.