Forum:Negate attack cards

Alright, my question is alla bout trap-cards. Cards like Widespread Ruin, Blast Held by a Tribute and Mirror Force all include this kind of text: When your oponnent declares an attack, destroy face-up monster(s), but if I activate Mirror force when my oponnent attacks, will the attack be negated because the monsters are destroyed?--91.95.255.117 11:16, September 19, 2009 (UTC)