The version shown on TCM last night was the "non-dialogue" version, a silent version with intertitles and a music and effects track.  While Universal continued to prepare silent versions of many of their films for theaters that weren't wired for sound, prior to dubbing, synched-silents with an M&E track were designed for foreign release.  The English inter-titles were "place holders" that were to be replaced with foreign title cards.  Interestingly Universal also prepared some of their silents for reissue with music/effects tracks to fill out their foreign release schedule, such as "Hunchback of Notre Dame" and "Midnight Sun."  Eventually they began to contract foreign producers to make foreign language versions of some of their films (I believe France was one of the first).

I think one of the interesting things about the non-dialogue version is to see how music could benefit those otherwise creaky early talkies.  I'm sure Milestone felt music would hamper the documentary naturalism that he wanted, and the talkie version is still powerful despite flaws.  Then again, in the non-dialogue version you don't have to suffer the middle-American accents of all those German soldiers!