During the fiscal year 2011, which ends September 30, Washington expects the sales of equipment and military services through its Foreign Military Sales process to grow.

About 79 percent of these exports are financed by client countries and organizations, with the remainder funded by US aid programs.

US military equipment sales, confined to about $10 billion in the early 2000s, tripled to around $30 billion after 2005.

"From 2005 to 2010, we have delivered through the Foreign Military Sales process $96 billion worth of equipment, goods and services to partner countries," said Defense Security Cooperation Agency Director Vice Admiral William Landay.

Ten years ago, clients were most interested in purchasing material at the lowest cost, even if that meant spacing out deliveries, he explained.

But with the war in Afghanistan and a higher operational tempo for many armed forces, clients are seeking quicker access to purchased progress, which explains the rise in the value of American exports, according to the admiral.