hi! more input is welcome, meanwhile here are a few previous discussions to get you started

• When and why did Switzerland become so fiercely neutral?

• How long/why has Switzerland been neutral? Was it neutral during WWII? If so, did Hitler respect that? If so, why?

• History of Swiss neutrality

• Why didn't Switzerland join the UN until 2002?

• Why did Switzerland stay out of the UN until so late?