Canada just fired back with $20B in retaliatory tariffs hitting 700 US goods.

This is how trade wars escalate — tit-for-tat protectionism that hurts consumers on both sides while politicians claim victory.

Watch for:
• Supply chain disruptions in cross-border manufacturing
• Inflation pressure on both sides
• Weaker consumer sentiment
• Potential USD/CAD volatility

If this spreads beyond North America, global trade flow disruptions could hit cyclical sectors hard — industrials, materials, consumer discretionary.

Defensive positioning and currency hedging might be the play until cooler heads prevail. Or this drags on and everyone loses except lawyers and lobbyists.