100% long US equities.
Dollar cost average.
If anyone is fearful of a crash buy downside protection with put options to cover your long. Although why bet against US business in the long term (20+ years)?
* https://www.bogleheads.org/forum/viewtopic.php?t=265807
Investing only in the place you live, called "home country bias", is something to be avoided by everyone:
* https://www.vanguard.com/pdf/ISGGEB.pdf
* https://www.etf.com/sections/index-investor-corner/swedroe-h...
However, my original point was that assuming things will be golden forever (or at least a very long time) usually ends badly.
To your follow up on allocations, unlike the past, a large bond holding is unlikely to save you this time (very limited price appreciation potential) and could go the other way when under stress (liquidity issues, forced redemptions to cover equity losses). It is harder to hide than ever before.