1/ Russian President Vladimir Putin signed a decree expanding the ability to use nuclear weapons, in response to the United States allowing Ukraine to use long-range missiles provided by the United States to attack Russian territory. 2/ On the first day of the summit, G20 leaders focused on discussing the reform of international institutions. 3/ Hong Kong's judiciary sentenced 45 democracy activists to prison for "overthrowing the government". 4/ Topic of the column One event a day: North Korea moves closer to Russia but still needs China. 5/ Following the news: Environmental activists are being suppressed on all continents. RFI Vietnamese program is broadcast daily from 2:00 p.m. to 3:00 p.m., Paris time (GMT+2). To follow information and news continuously, please visit https://www.rfi.fr/vi/ or www.facebook.com/RFIvi/