AA question from a Newbie

Thanks to everyone for clearing that up. :)

Brilliant, logical and brief. Many thanks for the explanation.

:-D
Subs rule!
Just wish I could afford to buy more for Germany.
  I playtested a strat in the on-line gaming on the TripleA site where I defended Western Europe and bought an IC there on G2. The whole purpose of the IC in western Europe was to place subs in the 3 adjacent sea zones as needed! Specifically to keep UK from loading up troops and going into the Baltic to invade. It also played havoc in the western Med for allied shipping there as well.
Really competant allied players, with a great amount of patience usually overcame this expensive defensive strat. But others were so frustrated by it, that they usually capitulated by turn 7 or 8.  :-D

Thank you for answering my questions  :-) !

My apologies.  I meant offense.

Never try to write in a forum and write software at the same time.

if it were free for all trading may work. you would need countries to have difernt units. like and japanese fighter defending on 5 and russian fighters on a 3. then russia could be like i’ll buy a japaese fighter for m japanfor 10 ipcs. japan would (if it were to trade) buy on figther and  put it on a transport or in a bomber. the transport/bomber would have to drop the fghter off somewhere in russia.

Though it fires once PER PLANE… and BOM and FIGs are rolled against seperately…

I have no idea what version it was.  A friend of mine, Kurt, invited me over to play while he was downloading something over his 14.4 modem off of some ftp server somewhere.  Anyway, he was Axis and I was Allies.  I played the Russians by buying a mix of things.  I know I bought  fighters, not sure on how many tanks or infantry.  I played them aggressive.  Always attacking towards Germany.  I was not sure what to do with England or America so I bought tech and bombers.  eventually, both had Heavy Bombers and Long Range Aircraft and I kept doing Strategic Bombing Runs against Berlin.  The tide started to turn at that point because I would blast away most of his income leaving him a few IPC’s for a handful of infantry.  I completely ignored anything that was not Europe.  I eventually lost due to the Magic 84 rule, I had forgotten about it, because I just let the axis control all of Africa and most of Asia.  That actually made me mad because I was sure I could have cracked into Berlin within a turn or two.  :x  I was practically knocking on the door with huge stacks of Russian units and I had a ton of US & UK bombers.  That and I had some amazing early rolls, I think.  He was a good sport about it and pointed out that if I had done Torch with the US I could have avoided it for a bit longer and probably would have won.  I literally had not touched/moved a single US or UK land unit the whole game.