A cost estimate is the approximation of the cost of a program, project, or operation.The cost estimate is the product of the cost estimating process. The cost estimate has a single total value and may have identifiable component values.A problem with a cost overrun can be avoided with a credible, reliable, and accurate cost estimate.stimates for the cost of facility construction are a major part of the cost estimate domain. A construction general contractor or subcontractor must normally prepare definitive cost estimates to prepare bids in the construction bidding process to compete for award of the contract.
June-July 1944: Saipan. On June 15, 1944, American forces invaded the island of Saipan, part of the Mariana Islands in the Central Pacific. Securing Saipan was of critical importance to the U.S.; its airfields would put the Army Air Force's new B-29 bombers within striking distance of the main Japanese islands.
Iwo Jima was important for two reasons. It was an air base for Japanese fighter planes and it was a safe place for Japanese ships. In addition, it was used by the Japanese to do air attacks on the Mariana Islands.t was major battle in which the United States Armed Forces captured the island of Iwo Jima from the Japanese Empire. The Americans wanted to capture the island, including its three airfields. The US wanted to use this area for attacks on the Japanese main islands. This five-week battle had violent fighting.