Australian security - Is United States our best option?

Since the end of WW2, the security alliance between Australia and the United States ANZUS has been the cornerstone of our foreign policy and security. And the AUKUS agreement announced in 2021 by Prime Minister Morrison only deepens that alliance. But just how well has the alliance served Australia and will the AUKUS deal enhance our security or lead us into a war with China we don’t want? And if AUKUS does pan out, do we have a plan B or is our plan B to make sure plan A works?