Europe has been more or less militarily occupied and subjugated for that time. Conquered nations tend to be pretty docile on the international level and generally don't go around waging war independently.
This is Orwellian gaslighting. These papers should no longer be viewed as authoritive keepers of the public record. Any institution that engages in this kind of memory-holing forfeits all credibility. They can no longer be trusted whatsoever.