Unionists must unite to oppose NI Protocol, says Donaldson

The speaker emphasizes the importance of unity among unionists in opposing the protocol, which they argue undermines the Acts of Union by creating trade barriers within the UK. They criticize the unnecessary customs arrangements and call for determination to protect the Union. The speaker urges the audience to stand firm and reject the protocol, highlighting the historical significance and sacrifices made for the Union.

According to the speaker, what is the significance of standing united against the protocol?

What historical context does the speaker provide to support their argument against the protocol?