Board Thread:Suggestions forum/@comment-29145474-20170101165108/@comment-25754873-20170102024230

Why would the Dwarves of the Orocarni trust easterlings who aare under Sauron's service, also Sauron hates the dwarves and they are far more aware and unniave than the Dorwinirm so ignoring them and keeping a guise of "friendship" would not be an option.

Also, by now the Blue Wizard have already been working for 5000 years, and Tolkien said they where successful, if the Dwarves of the Orocarni would trade with any men it would be enemies of Sauron.