The conflicts have replaced inflation as the top concern among investors.
Thursday was the worst day for the Bloomberg Treasury Index in more than six months.
Higher borrowing costs for longer mean financial conditions will tighten even without further action from policymakers.
Global bonds are down 3.5% in 2023 and yields worldwide are now at levels almost unthinkable at the start of the year.
Paul Brain said that he's readying his funds for an era of more entrenched price pressures.
Many closely-watched spreads in the Treasury market have already flipped below zero.
Money markets are signaling that the fed funds rate will peak by March.
Traders see 175 basis points of tightening by the Fed by September.
Treasurys gained for a second day as investors sought out the safest debt.
The fixed-income vehicles still represent a hedge against a global economic slowdown.