Before revision: Current members Country PfP membership Notes CSTO member EU member GUAM member CSTO member GUAM member EU member CSTO member CSTO member EU member GUAM member CSTO member CSTO observer CSTO member GUAM member Austria Austria's participation in PfP was strengthened in 1996.
After revision: Current members Country PfP membership Notes EU member GUAM member GUAM member EU member CSTO member CSTO member EU member GUAM member CSTO member CSTO observer CSTO member GUAM member Austria Austria's participation in PfP was strengthened in 1996.