The partnership, according to officials who spoke to ABC News, has been essential to Ukraine defending itself as Russia invaded almost three years ago.

No one would ever refer to CIA Director William J. Burns as “Wild Bill,” the nickname of William J. Donovan, who led the OSS, the agency’s swashbuckling predecessor, during World War II. But the self-effacing Burns has bravely commanded a CIA force in Ukraine since Russia’s invasion nearly three years ago.

Kyrylo Budanov, Head of Ukraine's Defence Intelligence, has warned that unless serious negotiations to end the war take place by the summer, Ukraine could face dangerous developments. Source: Budanov during a closed meeting with parliamentary faction ...

[UPDATES] As of 2:30 p.m., Ukraine’s Military Intelligence (HUR) issued an official statement denying the remarks attributed to its Head, Kyrylo Budanov, by the media outlet Ukrainska Pravda. “The Main Intelligence Directorate of the Ministry of ...

In July, the U.S. helped foil a Russian plot to assassinate the head of a German arms manufacturer that produced weapons for Ukraine. In August, the CIA said it provided intelligence to Austrian ...

The development of a new generation of drones has revolutionized how wars are fought, according to U.S. officials.

President Trump said Russian President Vladimir Putin is “destroying Russia” with its nearly three-year war in Ukraine, adding he hopes the Kremlin leader is open to making a deal to end the