Estonian Prime Minister Kaja Kallas submitted resignation to President Alar Karis, citing ERR. During an extraordinary session, both Kallas and her government submitted their resignations.

Estonia's Prime Minister Kaja Kallas resigned on Monday to take a new leadership position with the European Union, opening up negotiations to form a new government in her country.

Chief National Security Correspondent Jennifer Griffin interviewed Estonia’s first female Prime Minister and one of Putin’s loudest critics for Special Report with Bret Baier.

NPR's Scott Simon speaks with Estonia's Prime Minister Kaja Kallas about the growing tensions between her country and its neighbor Russia over the war in Ukraine.

Estonia's Prime Minister Kaja Kallas has stepped down as the leader of the Baltic country to become the foreign policy chief of the European Union later this year.

President Volodymyr Zelensky met with Estonian Prime Minister Kaja Kallas in Zhytomyr Oblast on April 24, the President's Office reported on April 24.

Estonia’s first female prime minister has emerged as a leading hawk in the European Union by insisting Russia must be defeated in Ukraine.

FILE - Minister of Climate Kristen Michal, left, stands as Estonian Prime Minister Kaja Kallas walks by before welcoming Sweden's royalty in Tallinn, Estonia, May 2, 2023.

Estonia's accession to NATO became one of the country's main foreign and security policy goals after the restoration of independence in 1991, Prime Minister Kaja Kallas (Reform) said on Friday, the ...