About 150 people took part in a peaceful anti-war demonstration in the centre of Bristol on Friday night.
Seven people were arrested during protests involving large crowds on Thursday.
More than 2,000 people gathered near the Bristol Hippodrome and 300 people tried to close the M32.
The motorway blockade was stopped by mounted police and patrol officers.
The arrests were for alleged affray, breach of the peace and assault on police.
Police say they came under attack from missiles.
Another incident occurred when a large group of people swarmed around the Council House at College Green and officers were forced to intervene.
Police then moved the protesters along St George's Road, towards Hotwells.
A police spokesperson said: "They were contained on the Swing Bridge and a controlled dispersal was permitted to prevent a re-group."
About 400 peace protesters - many of them schoolchildren - had converged on the city centre at lunchtime on Thursday.
No-one was injured during the protests.