You have to do this your self. No one is going to write an essay for you. In highschool you cant just ask someone to do an essay for you. All the help I can give you for this is that number 2 is the most easy one to do.
The Treaty on Open Skies entered into force on January 1, 2002, and currently has 34 party states. It establishes a program of unarmed aerial surveillance flights over the entire territory of its participants.