If you think you know something the market doesn't know about those countries, and future inflation rates, then your strategy makes sense.
But otherwise, investing in a pure cash portfolio is super-exposed to inflationary risk, and very low-growth.
But otherwise, investing in a pure cash portfolio is super-exposed to inflationary risk, and very low-growth.
In other words, a financial trade isn't a bet on your insight. It's a bet that your insight is sharper than the person on the other side of the trade.