Thanks Dog Almighty, that was very helpful.
I take that the dice roll/outcomes work the same as normal attacks - except there is no need to advance a troop to the now neutral region, if indeed it is possible?
The map is 'Das Schloss' Game 10255524(Dog - No need for you to really read the copy/pastes below, but I thought I'd include them to try and give a clearer picture of my question!)
Below is a play one team member did that used bombardment
As you can see he Bombarded several regions from 'AA' and I didn't/don't understand how he did it.
I'll have to wait until it's my turn to put some troops into 'AA' and see what attacking options come up.
2012-02-23 05:47:48 - morleyjoe got bonus of 2 troops added to Casey
2012-02-23 05:47:49 - morleyjoe got bonus of 1 troops added to C1
2012-02-23 05:47:49 - morleyjoe got bonus of 1 troops added to C2
2012-02-23 05:47:49 - morleyjoe received 3 troops for 8 regions
2012-02-23 05:47:51 - morleyjoe played a set of Landeplatz B, Funkraum, and Kneipe worth 10 troops
2012-02-23 05:48:09 - morleyjoe deployed 11 troops on C2
2012-02-23 05:48:29 - morleyjoe deployed 2 troops on Wache Aus 1
2012-02-23 05:48:32 - morleyjoe assaulted Access Point from C2 and conquered it from joemaya
2012-02-23 05:48:35 - morleyjoe assaulted Sdt. Gerd from Access Point and conquered it from joemaya
2012-02-23 05:48:44 - morleyjoe assaulted Sdt. Sven from Sdt. Gerd and conquered it from neutral player
2012-02-23 05:48:48 - morleyjoe assaulted Kneipe from Sdt. Sven and conquered it from joemaya
2012-02-23 05:48:54 - morleyjoe assaulted DD4 from Kneipe and conquered it from joemaya
2012-02-23 05:49:00 - morleyjoe assaulted AA from DD4 and conquered it from neutral player
2012-02-23 05:49:14 - morleyjoe bombarded S2 from AA and annihilated CJ Lues's troops
2012-02-23 05:49:17 - morleyjoe bombarded S1 from AA and annihilated CJ Lues's troops
2012-02-23 05:49:25 - morleyjoe bombarded T1 from AA and annihilated Blitzstrahl's troops
2012-02-23 05:49:33 - morleyjoe bombarded T2 from AA and annihilated Blitzstrahl's troops
2012-02-23 05:49:40 - morleyjoe bombarded N2 from AA and annihilated joemaya's troops
2012-02-23 05:50:02 - morleyjoe reinforced Sdt. Mat with 2 troops from Casey
2012-02-23 05:50:02 - morleyjoe ended the turn and got spoilsAfter that play Morleyjoe posted this in the Team Chat (and I didn't understand exactly how the region 'AA' and bombardments from it worked)
2012-02-23 00:00:33 - morleyjoe [team]: if we contniue to increase our bonus lead and protect it, we will eventually have enough to do 1 of 2 things
2012-02-23 00:01:30 - morleyjoe [team]: load someone so big (probably Bill) to take the objectives, or stack to take the 60 stacks
2012-02-23 00:01:54 - morleyjoe [team]: either way, it will take preserverance, and maybe hitting AA once and awhile to slow them down
2012-02-23 00:02:54 - morleyjoe [team]: I'm betting though that orange takes a run at my bonus troops this turn though
2012-02-23 17:02:57 - lXeneXl [team]: If blitz doesnt take me out of NE this round, I'll accuse him of throwing the game 
2012-02-23 17:03:47 - lXeneXl [team]: so close my farts squeel
2012-02-24 01:46:15 - morleyjoe [team]: you take him out first!
2012-02-24 11:31:13 - Fugitive_Bill [team]: Morley: I like the plan. --- As for Xene trying take Blitz out of the NE, I don't think he's got the firepower for it. It's a shame his spoils are not rainbow set.
2012-02-24 17:51:02 - lXeneXl [team]: no go bros
2012-02-24 17:51:25 - lXeneXl [team]: no spoil either
2012-02-25 03:04:05 - Gen. Ramsarelli [team]: Kicked pinks ass up to that last damn troop and couldnt beat him with 6 armies. What a crock! Lol
2012-02-25 03:09:04 - Gen. Ramsarelli [team]: Bill you can clear out cyan now. Head west through Wache In 1 and just circle around the block.Going by the above, do you think his attack using bombardment was wise and are his follow through plans a good idea!?
(I guess should not be discussing/posting team tactics, less someone in the enemy team read this message, they will know our tactics/plans!

But the chances of one of them reading this are about 0.1% because reading their stats none of them appear to use the forum very often, if at all)
Sorry to throw all that at you, but once I got started I couldn't stop!
Cheers -B!LL.