With tensions rising between Canada and the US over the latest broadsides in President Donald Trump's trade war, the White House is threatening even more levies following Prime Minister Mark Carney's announced dollar-for-dollar retaliation. The rupture between Ottawa and Washington is becoming harder to dismiss as temporary, with the war of words increasingly implicating the broader relationship between the once-close allies.

But as more countries seek to put distance between themselves and the US, will they really move closer to China? In a conversation recorded Aug. 20, before the latest US-Canada skirmish, Stephanie Flanders is joined by Bloomberg’s Dan Ten Kate and Chris Kennedy to explore how the so-called middle powers are trying to diversify their economic and security relationships — and why Beijing’s export dominance, strategic ambitions and trust deficit mean there may be no easy alternative to an economically belligerent America.