Putin a cham chhung hian S-400 Surface-to-Air Missile, SAM khawl 10 leina tur inremna ziah fel theih beisei a ni a, hei hi US Dollar tld 6.2 man vel a ni. SAM khawl bakah hian indo lawng 4 leina tur inremna pawh ziah theih an beisei thu thuneitute chuan an sawi a ni. Russia a\anga ralthuam lei hi US chuan a duh lo hle a, mahse India laka intiamkamna a neih sa avangin a \ha lo zawnga nghawng a neih loh tur thu Centre for Analysis of World Arms Trade hotupa, Igor Korotchenko chuan a sawi a, US hian hun lo kal zel turah India hnena ralthuam a la hralh chhunzawm duh dawn avangin a hrek dawn lo niin a sawi a, US Defense Department thupuangtu, Lieutenant Colonel David Eastburn chuan hrekna lek leh lek loh chu President thu a nih thu leh tun dinhmunah chuan India nena an inkar \hat lai a nih vangin Defense Secretary Jim Mattis pawhin a ngai pawimawh hle tih a sawi bawk a ni.
S-400 SAM hi kum 2007-a siam chhuah kha a ni a, Russia-in ralthuam a hralh chhuah tam ber zing ami a ni a, km 400 china thlawhna leh missile a kap thla thei a, Turkey pawhin lei a tum mek a, mahse US in a dodal nasa hle a ni.
