Excessive blood loss. 1  Blood loss from the gastrointestinal (GI) tract is the most common cause of IDA in adult men and postmenopausal women. 2  Blood loss due to menorrhagia is the most common cause of iron deficiency in pre-menopausal women.
The Monroe Doctrine is the best known U.S. policy toward the Western Hemisphere. Buried in a routine annual message delivered to Congress by President James Monroe in December 1823, the doctrine warns European nations that the United States would not tolerate further colonization or puppet monarchs.
In the early days of the war, as Britain and France struggled against Germany, American leaders decided it was in the national interest to continue trade with all sides as before. A neutral nation cannot impose an embargo on one side and continue trade with the other and retain its neutral status. In addition, United States merchants and manufacturers feared that a boycott would cripple the American economy. Great Britain, with its powerful navy, had different ideas. A major part of the British strategy was to impose a blockade on Germany. American trade with the Central Powers simply could not be permitted. The results of the blockade were astonishing.