Katie Holmes: My Marriage To Tom Cruise was Kaput in 2011

our sources has learned … Katie Holmes says her marriage to Tom Cruise was “irretrievably” broken at least 6 months prior to her filing for divorce … this according to divorce documents filed in New York.

Sources connected to Tom tell our sources … Katie”s contention is baffling, because he had “no idea” she was about to file for divorce.  As the sources told us last week, Tom was “blindsided” by the filing.

Indeed, take a look at the pic (below) of Tom and Katie strolling the streets of Iceland hand-in-hand a little more than 2 weeks ago.

But wait … there”s more.

We”ve also learned … Katie claims in her divorce documents that both she and Tom have been residents of New York for “at least 2 years.”  Katie, who filed in NYC, must establish legal residency in NY in order for the court to have jurisdiction — something she wants because New York courts are more likely to grant sole custody of Suri — something she desperately wants.

No doubt … Tom — who shared a home with Katie in Beverly Hills for years — will fight the residency claim tooth and nail.