for his work travels? And are we looking at the time period when engineers would be laying the foundation for American jobs to be offshored to Asian countries?

Are we cheering on Steve creating our own demise or do I have that wrong?

Steve travels to Paris, France, work-related, in Season 2 "Le Petit Stowaway" (Chip on the plane unexpectedly).

There was also a color ep where Steve reminisces about a woman who had been a recent romantic interest in England - Season 6, "London Memories." So obviously he had traveled there.

As far as other international travel, the family visits Scotland in the b/w seasons and of course Steve & Barbara honeymoon in Mexico. Not work-related though.

I really can't say regarding the second & third parts of your question, likely a lot of the seed-sowing began post-WWII with the rebuilding of the world's physical damage and disrupted economies. Everyone has a different take. It's personally hard for me for example to buy Japanese products knowing the atrocities suffered by the Bataan POWs and of course the lost lives at Pearl Harbor.

I remember he went to Fresno, Ca. too! Pretty sure they already lived in LA ! LA to Fresno is such a short flight ! ;)

Steve took the kids to Italy when he went there on business, in the episode, "Roman Holiday." Season 3, episode 18.

It's personally hard for me for example to buy Japanese products knowing the atrocities suffered by the Bataan POWs and of course the lost lives at Pearl Harbor.

we did drop leaflets over Japan but this is never mentioned in "peace movement" propaganda:

https://www.pbs.org/wgbh/americanexperience/features/truman-leaflets/

Yes, I was aware of those leaflets because the bombing was a debate subject in my college "Freshman Seminar" class.

We all know it was a horrible thing, especially with civilians affected -- but as my dad was already stationed overseas at that time, there's a high probability he would have been part of a U.S./Allies invasion of mainland Japan, and if so there's also a good chance he wouldn't have come home alive.

Yes, I was aware of those leaflets because the bombing was a debate subject in my college "Freshman Seminar" class.

We all know it was a horrible thing, especially with civilians affected -- but as my dad was already stationed overseas at that time, there's a high probability he would have been part of a U.S./Allies invasion of mainland Japan, and if so there's also a good chance he wouldn't have come home alive.

Nanjing, Unit 731, Doolittle Raid retaliation, Bataan Death March, Burma-Thai Railway, comfort women, and countless other war crimes, shooting of nurses as they tried to flee, the Palawan massacre - 150 POWs ordered in trenches, then they put oil in and set it on fire - 139 of them died, most of them from being burned alive. That's what's on Japan's rap sheet.

Find an excuse for all of them, then maybe, maybe I'll listen to people who say there was no justification for the atomic bombs.