
The outgoing Prime Minister was photographed in combat gear as he handled a variety of weapons.
In the video, troops can be seen storming buildings as they train for urban warfare.
Mr Johnson wrote alongside the video on Twitter: “This week I visited Ukrainian troops being trained by British Armed Forces in North Yorkshire.”
“The UK is committed to doing all we can to help Ukraine continue to repel Russian aggression.”
It is the PM’s second military escapade of the week, after taking a ride on a Typhoon fighter jet on Monday.
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