What's "barricades of freedom" mean?

Native speaker’s answer
Rebecca
"Barricades of freedom" refers to the battleground barrier for the June Rebellion. The June Rebellion was an uprising against the monarchy. A "barricade" is a structure that acts as a barrier to control, block, or force the flow of people or things. Often used as the place where soldiers shoot and fight from. So they're referring to this specific barricade as one that represents freedom.