Re: Help with thesis. Please!
The escalation of the Cuban Missile Crisis was primarily due to decisions made early in JFK's presidency: these decisions were dangerous.
***neither a teacher nor a native-speaker***
Since you are a native-speaker of English, it would be unwise to correct your sentence but I as a non-native-speaker, have found one or two parts of it, a little vague. And these parts are as in the followings;
Do you mean that;
The decisions were made earlier than the time they should have been made.
The decisions were made in the early stage of JFK's presidency.
And, as for the other part that I've failed to understand;
Were the decisions dangerous?
Did their consequences put (the peace or the nation, or etc.) in danger?