NZ Defence Force Visitor | Defence,Bombs,Contruction challenge.

Yesterday we had a new visitor in our class his name was Mr Ching also knowen as Isac. we got told the 4 layers it was shape,matrials. We learnt the defences witch was turrets,land marks,comoflage. And the type of bombs are the dumb bombs,motor,grenad,smart bombs,ICBM's,guided missels,c4,dynsmite. Then after that we did a challenge we had to make a structure out of straws and paper we had to try and pretect the helicopter from the fire storm.