The Treaty of Westminster, signed in 1931, had impactful consequences for the British colonies. This treaty enabled the legal independence of dominions such as Canada, Australia, New Zealand, South Africa, and Ireland, granting them full control over their own policies and laws without interference from the British Parliament. The primary consequence was the establishment of legislative independence, which marked a shift from colonial rule to self-governance. This development allowed these nations to forge their own identities and pursue their interests, laying the groundwork for the gradual decline of the British Empire and the rise of Commonwealth nations.