There could be a sinister reason behind why Vladimir Putin walked with one arm by his side when he met Donald Trump last week.
The Russian leader was in Alaska to attend a peace talks summit with the US President, though discussions failed to provide any concrete results.
Footage of the pair walking together shows Putin with his left arm swinging in time with his steps, while his right arm is mostly kept down by his side and is static.
Putin's bizarre step has been observed on numerous occasions, with many trying to solve the mystery and find out why he walks in this way.
After analysing footage from throughout the years, a team of experts believe they've cracked the code.
