Caught my wife , need advice please

So I just got back from army infantry training which lasted 22 weeks , during the entire time my wife (whom I’ve been with her for 3 years married last year officially) had multiple affairs with several different guys while I was away , I came home last week and accidentally discovered videos she made on her IPad with them that were time stamped, geo pinned , and “graphic” to say the least . I haven’t said a word about it nor confronted her yet and I have no idea what to do now , I need some guidance please…