It is ok for the US ??, page-6

alan, just as HC has rules which you agree to adhere. We also have signed an agreement with the USA and New Zealand for better or for worse.

Signed by Australia, New Zealand and the United States, the ANZUS treaty recognised that an armed attack in the Pacific area on one member would endanger the peace and safety of the others. The signatories pledged to ‘act to meet the common danger’.