Complex sentence: At the governmental level, United-States-Australia relations are formalised by the ANZUS treaty and the Australia-United States Free Trade Agreement.Australia is the only country to have served alongside the United States in every major conflict since WWI.
Split into simpler sentences: At the governmental level, United-States-Australia relations are formalised by the ANZUS treaty and the Australia-United States Free Trade Agreement. Moreover, the United States has had a considerable impact on Australian culture.Australia is the only country to have served alongside the United States in every major conflict since WWI.