<span>Everything you need to make a good meaningful sentence (and grammatically correct, ofcourse), is to follow common rules. Do not forget to provide your sentence with complexity, but you dont have to make them too complicated, I mean you need to use key words, they will make your thought completed. And the second point is that you need to properly organize the sentence using correct word order. I hope this helped. </span>
Answer:
The action was an act of treachery.
Explanation:
What is this about? What story is this from?
Tom Buchanan is with them