US Army colonel wants Australia to train up 4000 amphibious assault troops

Why would a US Army Colonel be telling the Australian government to train up 4000 amphibious assault troops? Is the US government planning to invade some country from the sea soon? Surely the USA has enough Marines to invade where ever they want. 4000 Australian Army troops won't make much difference.



"Colonel Angevine says the US and Australia should '' complement'' each other's strengths and that Australia could get more value by leasing US submarines. He urges the expansion of the army by between 2000 and 4000 troops, who would be trained in amphibious assault operations."

[link to www.smh.com.au]