Russia’s invasion of Ukraine could mark the beginning of a turning point for the U.S. dollar, according to money market guru Zoltan Pozsar.

Speaking on Bloomberg’s Odd Lots podcast, the global head of short-term interest rate strategy at Credit Suisse AG noted that wars tend to turn into major junctures for global currencies, and with Russia losing access to its foreign currency reserves, a message has been sent to all countries that they can’t count on these money stashes to actually be theirs in the event of tension. As such, it may make less and less sense for global reserve managers to hold dollars for safety, given that they could be taken away right when they’re most needed.