Forum:Union Monsters Vs. Black Rose Dragon (simultaneous destruction)

I have a rulings question about union monsters. For arguments sake, lets say that Player 1 has Machina Fortress equipped with Machina Gearframe on the field. Player 2 then syncro summons Black Rose Dragon and uses its effect to nuke the field. Would Machina Fortress be saved because of Gearframe's effect or would Black Rose destroy them both?