N. Korea sent at least 3,000 more troops to Russia earlier this year: JCS

North Korea dispatched at least three-thousand additional soldiers to Russia this past January and February in support of the latter's aggression against Ukraine.

This is according to South Korea's Joint Chiefs of Staff.

Military authorities here also assert that North Korea continues to supply Russia with critical ammunition including short-range ballistic missiles.

Separately officials in neighboring Japan have called the military collaboration between North Korea and Russia a "serious concern".

In fact Japan's Diplomatic Bluebook for this year states such collaboration not only aggravates the situation in Ukraine but also looks to affect regional security here in this part of the world.