S. and Canada recently broke down. Following this development, a new escalation in the trade war has been announced.

A plan to impose new tariffs has been revealed, which will affect Canadian cars and steel. The tariffs are expected to be 50 percent and are set to take effect in January. This move is seen as an escalation of the trade tensions between the two countries.

Further details on this announcement and its potential impact are available from the source. The breakdown in trade negotiations and the subsequent tariff announcement have significant implications for trade relations.