How do type 1 diabetics travel abroad?

The title says it all. How do type 1 diabetics travel abroad? My fiance and me are thinking of taking our honeymoon abroad, but I'm typing one diabetic and have never been abroad before. How do you get passed all the security with insulin and needles in your luggage? Thank you so much for your time.

Kind and Warm Regards MissAntleredWriter ~<3