Club isomorphisms on higher Aronszajn trees

We prove the consistency, assuming an ineffable cardinal, of the statement that CH holds and any two normal countably closed ω2-Aronszajn trees are club isomorphic. This work generalizes to higher cardinals the property of Abraham-Shelah [1] that any two normal ω1-Aronszajn trees are club isomorphic, which follows from PFA. The statement that any two normal countably closed ω2-Aronszajn trees are club isomorphic implies that there are no ω2-Suslin trees, so our proof also expands on the method of Laver-Shelah [5] for obtaining the ω2-Suslin hypothesis.