A trade fight between the US and its northern neighbor has escalated with the imposition of retaliatory tariffs. These tariffs, which took effect on Tuesday, target $27.6 billion in American products. The economic policies impose tariffs at rates of 15 percent, 25 percent, and 50 percent.

The tariffs apply to around 6 percent of US exports to Canada from last year. This move marks the latest development in the ongoing trade dispute. Further details about the tariffs and their potential impact are available from the source.

The implementation of these tariffs is a significant step in the trade fight, affecting a substantial amount of American products.