Introduction

The us. Navy has ten operational aircraft carriers, compared with only seven spread among all the world's other navies. The navy's 100 an 60 billion dollar budget is, by at least one measure, more than china pends on all the branches of its military combined. For sea power takes many forms and has many elements, and there is considerable disagreement over what these are and how they correlate. A lot hangs on the shift in focus from upon the sea to in the ocean.