u/TridentsandRurikids

Are we sure that people, with sure knowledge of the old and new worlds wouldn’t have at least attempted to, say, travel down the Aleutian Islands, or that nobody would’ve had to repel a freak invasion from Iceland or something?

It would make a lot more sense for the invasions from Morocco, Britain, Japan (through Hawaii, though I’m not sure if I’m imagining this) and Russia to come after sustained contact (at least I think these were the planned invasion events). Not every “first (second) contact” has to be a Chinggis Khan style invasion ya know?