Q. Recently, which country has withdrawn its participation from Russia-led security bloc Collective Security Treaty Organization (CSTO)?
Answer:
Armenia
Notes: Armenian Prime Minister Nikol Pashinyan announced that Armenia had "suspended" its participation in the Collective Security Treaty Organization (CSTO). According to a Russian expert, Pashinyan's remarks are a result of recent agreements with France and a move to work with Western nations for military cooperation. The CSTO is a Russian-led regional military bloc established on May 14, 2002.