Wearing a royal blue tie and crisp white shirt beneath his traditional black suit, Donald Trump can be seen pushing a fellow NATO leader gently on the arm to get to the front of the group. He proudly displays a grin while pushing the leader, before folding his hands and standing tall.

While any other world leader would be met with shock and awe if they copied Trump's actions, the shoved leader seems completely unsurprised. The woman next to them, Lithuanian president Dalia Grybauskaitė, can be seen speaking with Trump soon after the event, though the dialogue is unfortunately inaudible.

According to CNBC reporter Steve Kopack, who posted the original video, the man Trump shoved is none other than Duško Marković of Montenegro, whose small Balkan state is set to join NATO on June 5, 2017.

Montenegro has been criticized by Doug Bandow of Forbes, among others, for not contributing to NATO and consequently sucking up the United States' defense funds and other resources.

A history of narcissism

Since before Trump announced his candidacy for president in 2015, the former "Apprentice" star has had a huge number of controversies.

While psychologists have warned against "armchair diagnosis"--an incomplete diagnosis without actually meeting with the patient in person--it's true that Trump exhibits classic signs of narcissism while in public.

From the inappropriate to the bizarre, theories and rumors about President Trump abound. A recent controversy from CNN states that Trump allowed himself two scoops of ice cream, but ensured that those in his company received only one scoop each.

As ridiculous as this sounds, it is only the sprinkles on the ice cream of Trump's terrible tales.

Trump's narcissism often manifests in exaggerated promises and general boasting, such as his promise to build a border wall with Mexico or his claim that his inauguration crowd was bigger than Obama's, the latter of which was coined an "alternative fact" by his campaign manager, Kellyanne Conway.

This attitude can be clearly seen in the video, where Trump's need to be the center of attention masks his basic human decency.

Legitimate criticism of NATO

Doug Bandow, the aforementioned Forbes writer, agrees with Trump on one thing: NATO is obsolete. Adding Montenegro, a small state with limited defense funding, would only hurt the larger states who financially support the alliance, according to Trump and his allies.

While it's reasonable to expect your allies to participate financially in the same magnitude as you, the United States is larger and significantly better financed than most NATO allies. This makes it difficult for allies such as Montenegro to contribute in a significant way. Perhaps this underlying aggression is the reason for Trump's shove, or perhaps it's just another display of Trumpish narcissism.

Here's the video again, in slow motion:
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