 Complete the following phrase:  On 27 December 1979, 700 Soviet troops dressed in Afghan uniforms, including KGB and GRU special forces officers from the Alpha Group and Zenith Group, occupied major governmental, military and media buildings in Kabul, including their primary target, the Tajbeg Palace. The operation began at 19:00, when the KGB-led Soviet Zenith Group destroyed Kabuls communications hub, paralyzing Afghan military command. At 19:15, 