- US out of NATO? Trump will at least threaten that. The larger European countries are currently weak militarily by historical standards. There does not seem to be enough will in Europe to spend at US levels, outside of the countries on the front line, such as Poland and Finland.
- Ukraine war: Heavy US support for Ukraine probably stops. Whether Ukraine surrenders is up to Ukraine. Ukraine can fight on, but won't win much. Trump will meet with Putin and will give Putin much of what he asks for.
- Israel's wars: US support continues.
- China vs. Taiwan: Reduced support for Taiwan. China starts treating the area inside the nine lines as their own lake, and no US Navy craft go there. Pressure on Taiwan increases. China will attempt to get Taiwan to cave without actually invading. A blockade is possible.
- Trade with China: heavy protectionism on the US side. Few other countries will go along. Overall, China's influence in the world will increase.
- China's influence in South America will continue to increase. This isn't noticed much in the US, but it's big. South America now trades more with China than with the US. China controls about 40 ports in South America. The US had military bases around the world. China builds ports.