Dogs played important roles in the Atlantic slave Trade because they helped capture slaves in Africa and were used to run slaves down similarly to how dogs are still being used today in the mountains to hunt down and keep sheep at bay. This is the similarity between the two.
The six purposes of the government are as follows:
1- to form a more perfect union.
2- establish justice: by fair and reasonable laws and punishments
3- insure domestic tranquility: this means protecting Americans from other Americans
4- provide a common defense: to protect Americans from any outside forces
5- promote a general welfare for the benefit of citizens
6- secure the blessing of the liberty: this means that citizens have the legal right to life, liberty and pursuing happiness.
Britain helped colonies unite into an independent commonwealth