Here's everything you need to know about Huawei, the Chinese tech giant whose founder's daughter was arrested and which could spark an all-out trade war

Authorities in Canada have arrested the chief financial officer of the Chinese company Huawei, reportedly on suspicion of violating US trade sanctions on Iran.

For Americans, Huawei may not be a familiar name. But the tech giant is actually the second-largest smartphone manufacturer in the world, behind only Samsung, after recently pulling ahead of Apple.

This incident threatens to have major implications on the relationship between the US and China, which has already ordered Canada to "immediately release" Huawei executive Meng Wanzhou.

Here's what you need to know about Huawei, Meng Wanzhou, and how this arrest could escalate the US trade war with China.