If i remember correctly, there was a certain canal that the british wanted control of.
This is an example of irony.
It's not parody since the action isn't being dramaticized or made ridiculous, nor is it foreshadowing since there's it's not really suggesting that this later incident will happen. It's also not a metaphor since it's not different things being compared or likened to one another.
The solution the Kansas-Nebraska Act of 1854 offered to the problem of slavery was to allow both states to determine their slave or free state status via popular vote. However, both states were widely uninhabited at the time of their admittance and thus a huge number of settlers from free and slave states swarmed upon the states to sway the vote in their favor. This resulted in tragedy in the form of attacks where free and slave supporters clashed in violent and oftentimes deadly confrontation.
The Greek invention of democracy helped build our modern day government.