Canada is set to announce retaliatory tariffs against the United States on Tuesday, as relations between the neighbors nosedived following failed trade talks last week.
Here's what you need to know:
Washington and Ottawa were racing to reach an agreement beforeUS President Donald Trump's steep new US tariffs, announced in July, were due to take effect
Talks broke down days after the US President announced the neighbors were close to agreeing to a trade deal
The collapse in negotiations triggered Trump's threatened 50% tariffs on about $20 billion worth of Canadian goods the next day
