Offence or Offense? What’s the difference?

The difference between offense and offence is that offense is the spelling in American English and offence is the spelling in British English. 

That crime is a capital offense (U.S English).

It is an offence to strike an officer. (British English).

Offence or Offense in Canada or the U.K?

The word is spelled “Offence” in both Canada and the U.K.

Canadian English often follows British English spelling but in reality, both “offence” and “offense” are correct.

What about Offensive or Offencive?

Offensive is the correct spelling all around the English-speaking world. 

Offensive is an adjective derived from the word “offense” and means to cause someone to feel upset by some action.

That drawing is offensive to me.