I just bought this game and installed it in a Windows 95 virtual machine, because for some reason starting the game in Windows 7 or later causes a black-screen freeze up.

Anyway, the issue is that although the game is clearly in English, and the initial voice-overs for both the American and Japanese campaigns are in English, once I start the main combat portion of a game, subsequent voice-overs are in Spanish or Italian!

There are no apparent settings or options in the game to change the voice-over language. I am wondering if GOG properly checked their copy of the game used for this re-release. There are bootleg ISO copies of the this game doing the rounds on the Internet, which apparently exhibit the same issue with non-English voice-overs.

Has anyone else experienced this problem with the GOG release?

The voiceover is English here on a Windows in German. The store page says the text should also be available in German, but it's also in English (was not aware and don't know how to switch it or where the localized files are stored).

Thanks for the feedback. I tested an entirely separate installation of Windows 98 (again, within a virtual machine) to make sure there was nothing odd about my Windows 95 installation. Again, about 5 minutes into playing the first scenario of the Japanese campaign, all of a sudden a voice-over occurs in Italian. The accent is unmistakeable and at one point he clearly says the world "Italia". Once the voice-over is finished, I keep playing and it all seems normal apart from that.

This is very confusing...

I think I figured it out. The voice-overs are just the background music mixed with miscellaneous radio "commentary" from various combatant nations. Therefore, most of the commentary is in English and Japanese. It is just a bit odd and also confusing that other European languages such as Italian would be included in this game - perhaps a reference to the Japanese listening to Axis stations? In that case, why Italian and not German? A bit of an odd choice, particularly when playing a game set in the Pacific theatre, but at least it does not appear to be a glitch.