In a global tariff war, forex traders should focus on safe-haven currencies like USD, JPY, and CHF, as these tend to strengthen during economic uncertainty. Strategies should be built around news-driven volatility, with tighter stop-loss settings and reduced leverage to manage risk. Shorter timeframes can help capture intraday swings, while avoiding overexposure to commodity-linked currencies such as CAD or MXN, which are more vulnerable to trade disruptions.