Since *International Trade* wouldn’t make sense because if we’d be talking about items surrounding both sides are different, then that wouldn’t really have much of an impact as CULTURAL VALUES.
Isolation doesn’t make more sense than CULTURAL VALUES, since language among 2 sides wouldn’t effect THEIR OWN people and how they would communicate with. Unless you would bring the 2 together to create or improve the language as a whole.
Globalization (from Oxford Languages Dictionary): “the process by which businesses or other organizations develop international influence or start operating on an international scale.” Now this could be on par with CULTURAL VALUES, BUT check this out. Cultural Values: “are personal preferences that remain relatively stable over time. Understanding your own preferences and learning about the typical preferences of others can help you anticipate possible similarities and differences in ways people approach life and work.”
Religious Differences: “significant differences in religious belief and practice”
PLEASE READ! IN CONCLUSION: I would choose CULTURAL VALUES, since it makes more sense to me.
If you don’t agree with my answer, I think the second best answer would be GLOBALIZATION. I tried my best!
Answer (that I think is best btw): CULTURAL VALUES
The technologies were only used to observe enemies but as their effectiveness became apparent, both sides started to dismantle what they were using. For example, they shot down the planes that they would see causing more death.
