The June 19 defense pact signed between Russia and North Korea included a promise to provide military assistance to one another – within days Pyongyang said it was sending troops to Ukraine.
I hate this dunk because it's clearly shown in the original video that the DPRK officer saluted Trump first. The president salutes like fifty Marines every single day, it's not strange for him to reflexively salute someone else without thinking about it.
My point is that if you see people salute you and you salute them back, do it enough times and it will become a reflex. The response to Obama bowing to someone in a culture where bowing is totally normal was equally stupid, but it was conservatives doing it instead of liberals.