on earlier i spoke to alexandra voss covers. he is the editor in chief of swiss military review and i began by asking him what he thinks caused the explosion. the possibility of a truck carry explosives and we're talking here several 100 kilos. explosives is probably not going to produce this much damage as the pictures the footage that you have presented certainly is going to ruin the, the us us. so the visible part of the, of the bridge functional part of the bridge. but definitely the structure is not going to be necessarily impacted unless you have people coming down from the truck using shaded charge. and therefore, i think we need to take with a grain of salt. the story that is being told to us about how this truck arrives there and all of a sudden produce all of this damage. so if it wasn't a truck bomb, what are the alternatives? let's say take this in reverse. if you wanted to produce this kind of a result of a miss style or something that slice horizontal is not going to do the job and it would require a bong. so a lis

pushing a counter offensive in the east and in the southern how song region i want to bring in. alexandra voss covers he's editor in chief at swiss military review. and he's joining us from geneva. very good to have you with us or on al jazeera and given your experience, given that you've seen the footage of what happened at the bridge, if you will go to produce results like this, how would you go about it? the possibility of a truck carry explosives and we're talking here several 100 kilos. explosives is probably not going to produce this much damage as the pictures the position that you have. so present it certainly is going to ruin the, the us us. so the visible part of the, of the bridge functional part of the bridge, but definitely the structure is not going to be necessarily impacted unless you have people coming down from the truck using chain charge. and therefore, i think we need to take with a grain of salt, the story that is being told to us about how this truck arrives there and all of a sudden produce all this damage. so if it wasn't a truck bomb and what are the alternatives? let