The aim is for the investment to reflect the performance of the IBOXX $ TREASURIES { {®}} index (Index). The Index reflects the performance of tradable debt (bonds) denominated in US Dollars issued by the US government. The composition of the Index is rebalanced according to a pre-set methodology. For bonds to be included in the Index they must have a minimum maturity of 18 months when they are issued, and, on the relevant rebalancing date, have a remaining time to maturity of at least one year. The bonds must have at least $1 billion outstanding. The Index is calculated on a total return basis, which means that amounts equivalent to interest payments on the bonds are reinvested in the Index. To achieve the aim, the Fund will attempt to replicate the Index by buying a substantial number of the bonds in the Index in the same proportion as the Index as determined by the Sub-Portfolio Manager of the Fund which is Deutsche Asset Management (UK) Limited.