Q: Cloaking and support

By Khas, in StarCraft

If you have a cloaked frontline unit that cannot be hit by the enemy frontline unit, and you have a supporting unit in the same skirmish which can be targeted by the emeny frontline, is this supporting unit destroyed if the enemy has sufficient strength?

example: a zealot is fighting a wraith with a marine as a supporting unit. the zealot has an attack of 7 and the wraith has a health of 7, so the zealot has sufficient strength. Normally the zealot would be able to destroy the supporting marine, but what if the wraith has cloaking? is it still the same?

The marine would die.