Not so much a trade war as basic economic forces, and it's been going on for much longer than that. When infrastructure improves, companies and customers can look further to get their stuff done. If it's cheaper to do your industrial or manufacturing work abroad and have it transported to your country, that just happens.

The powers that be try to slow this down by banning imports outright (you can't for example import American chicken into Europe because of food safety laws), or high import taxes (Chinese EVs have a 50% import tax in Europe and the US to protect the local car manufacturers. Which is fair because the Chinese EV manufacturers are state-sponsored so their prices are unfair. Then again, western companies get billions in investor money to push the prices down).