\ What role did the United States play in creating and implementing alliances, both domestically and internationally?

Important role.

Explanation:

It should be understood that most countries of the world form alliances with the others for so many reasons. These include economy, technology, funding and so on.

And the U.S is not left out, so this alliance has given them a unique leverage in addressing various economic, diplomatic and geopolitical issues in those regions they have alliances with.

in contrast, the biological controls are self-sustaining, inexpensive and very effective once established. biological control could be used on thousands of golf course acres, improving their biodiversity and quality as wildlife habitat. in the process, the golf industry will be shown to be leaders in an environmental stewardship program of benefit not only to the lands they manage but also to the watersheds in which they exist.

by improved communication.