I have to write a essay about the confederation of Canada in 1867 and why it was a good choice. I have all of my body paragraphs done but I'm having trouble thinking of a proper introduction.

My first sentence for my intro is: confederation was the best choice for the British colonies in 1867 for a number of reasons.
Now I need 2-3 sentences leading from general idea to specific which i need help on and I have a thesis statement but I'm not sure it's good enough so here is my thesis statement : Canada joined confederation because of better economy, better government and to defend against the USA.

So I need 2-3 sentences leading from the general idea to specific and is my opening sentence (intro) and my thesis statement good or should I change it. Please help this is due tomorow and please don't give me any sites because they don't help

4 answers

Since I haven't read the body of your essay, I can't possibly know how to introduce it. We can only introduce something or someone we know.
You might give a little background on the movement for Canadian confederation.
I gave background in one of my paragraphs and my other paragraphs are:
Better government
Better economy
And to defend against the usa
We're some reasons why Canada decided to do confederation
That's all the more reason to mention the background in your introduction.