Answer for the week of May 24, 2020

What 4 nations worked together to enable 2-meter communications from the International Space Station?

US, Russia, Germany, Italy

Source: https://spaceflight.nasa.gov/station/reference/radio/

Question submitted by Mark ‘Fletch’ Fletcher | K2MJF

Side note: Other responses mentioned Japan and Canada, along with the continent of Europe, which are listed on the Amateur Radio on the ISS (ARISS) site. I awarded a point to any station that answered any combination of these as their 4 in their answer given the Source earlier directly mentions ARISS was formed to support amateur radio on the ISS.