Valentyn Nalyvaichenko, former head of Ukraine's Security Service (SBU), revealed in an interview that the SBU worked closely with the CIA to rebuild Ukraine's intelligence capabilities after the ouster of President Yanukovych in 2014. The cooperation, which began a decade ago, involved assistance in cyber-defense, counterintelligence training, and capturing Russian intelligence assets. Nalyvaichenko emphasized the importance of rooting out pro-Russian elements within the SBU and highlighted the support received from the Obama administration. The collaboration has resulted in a more effective SBU, particularly in counterterrorism and counterintelligence, and has contributed to the security of both Ukraine and the United States.