The EDIPI is a ten-digit number located in the barcode on the back of the card and in the integrated circuit chip embedded in the card itself. The first 9 digits are assigned unique numbers with the 10th digit being a check digit for the identifier. The EDIPI can be used as a unique person identifier.
In a British infantry battalion there are 3 rifle companies, 1 support company, 1 HQ company. Each rifle company is split into 3 platoons, and a HQ element. Each platoon is then split into 3 Sections of 8 men. Thee platoon is led by the platoon commander which is normally a 2nd lieutenant or lieutenant and a platoon sergeant.
The Marine Corps organizes itself in infantry battalions, which are its basic combat unit. A battalion has about 900 Marines and includes three rifle companies, a weapons company, and a headquarters and service company. The overall reductions in end strength left the USMC with 25 infantry battalions in FY 2014. By FY 2015, the Corps will have 23 infantry battalions. Under full sequestration, USMC end strength will be able to support only 21 infantry battalions. In 2010, the USMC determined that its ideal force size would be 186,800.