A man from Polegate has been jailed for 18 months for fighting during a demonstration in Dover.
Michael Wakefield, 45, from Southfield, took part in a march through the town on Saturday 30 January 2016 and was among those who clashed with people holding a counter-protest at the same time.
A review of all available footage captured at the time revealed evidence of Wakefield acting in an aggressive manner towards police officers throughout the demonstration.
He is also seen fighting and throwing an object, as well as encouraging other protestors to join in the violence.
Wakefield was arrested at his home address on Tuesday 24 May after his image was circulated to police forces across the UK.
He was sentenced at Canterbury Crown Court on Monday 5 December having pleaded guilty to violent disorder.
Investigating officer PC James Hatton-Browne said, “This is yet another pleasing outcome for the people of Dover who suffered as a result of the actions of people like Michael Wakefield.
“The high number of successful prosecutions to date shows that Kent is a no-go area for people intent on causing trouble under the guise of peaceful protest.”