Finally, the release of the 2nd Edition rules further complicates the process by making some sections of the 1st Edition obsolete. Full compatibility with 2nd Edition rules is only possible by owning the 2nd Edition. This forces some players to purchase the ASLRB all over again. An area the new rules simplifies is the Chapters included in various Modules. Originally a new module would add a new chapter to the ASLRB to cover the new material. For instance, the release of Yanks included special rules in Chapter E and a chapter detailing the American OOB. Any players wishing to use these rules in a following Module would also have to own Yanks. The 2nd Edition helps to alleviate this problem by supplying more rules in one binder. It still does not supply all rules for all situations. For instance, if you wish to play a scenario using Jungle terrain you will need the Code of Bushido module with its rules section. Also, the OOB of particular nationalities and the map boards from particular Modules may still be required for subsequent Modules.