SUPPLEMENT TO THE CURRENTLY EFFECTIVE PROSPECTUSES

                                -----------------

                       DWS U.S. Government Securities Fund


Effective on or about March 25, 2008, the fund will employ the iGAP strategy as
a part of the fund's main investment strategy and will change its name to DWS
Strategic Government Securities Fund. The fund will also implement changes to
certain investment policies in order to implement the iGAP strategy, including
the removal of the policies limiting the fund's investments to US government and
agency securities and limiting the fund's use of futures contracts and options
thereon. Accordingly, on or about March 25, 2008, the sections under the
headings entitled "The Fund's Main Investment Strategy" and "The Main Risks of
Investing in the Fund" will be replaced in their entirety by the following:


The Fund's Main Investment Strategy

The fund seeks high current income, liquidity and security of principal. The
fund normally invests at least 80% of the fund's net assets, plus the amount of
any borrowings for investment purposes, in securities backed by the full faith
and credit of the US government, including related repurchase agreements (the
"80% test"). Within the 80% test, the fund invests principally in Ginnie Maes
(Ginnie Maes are mortgage-backed securities that are issued or guaranteed by the
Government National Mortgage Association (GNMA) and are supported by the full
faith and credit of the US government), but also may invest in US Treasuries and
other securities that are backed by the full faith and credit of the US
government. Outside of the 80% test, the fund may invest in other debt and
mortgage-backed securities, including securities issued by US government
agencies or instrumentalities that are not backed by the full faith and credit
of the US government.



                                                                     [Logo]DWS
                                                                       SCUDDER
                                                           Deutsche Bank Group

January 8, 2008
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In deciding which types of government bonds to buy and sell, the portfolio
managers first consider the relative attractiveness of US Treasuries compared to
other US government and agency securities and determine allocations for each.
Their decisions are generally based on a number of factors, including changes in
supply and demand within the bond market.

In choosing individual bonds, the managers review each bond's fundamentals,
compare the yields of shorter maturity bonds to those of longer maturity bonds
and use technical analysis to project prepayment rates and other factors that
could affect a bond's attractiveness. The managers may also adjust the duration
(a measure of sensitivity to interest rate movements) of the fund's portfolio,
based upon such analysis.

iGAP Strategy. In addition to the fund's policy of investing at least 80% of its
net assets in securities backed by the full faith and credit of the US
government, the Advisor seeks to enhance the fund's returns by employing a
global tactical asset allocation overlay strategy. This strategy, which the
Advisor calls iGAP (integrated Global Alpha Platform), attempts to take
advantage of short and medium-term changes within global bond and currency
markets. The iGAP strategy is implemented through the use of derivatives, which
are contracts or other instruments whose value is based on, for example,
indices, currencies or securities. The iGAP strategy primarily uses
exchange-traded futures contracts on global bonds and over-the-counter forward
currency contracts, and is expected to have a low correlation with the fund's
investments in government securities. In employing the iGAP strategy, the
Advisor intends to limit its use of derivatives to those that it considers to be
liquid. In addition, because of the aggregation of the various long and short
positions, the Advisor believes the iGAP strategy can potentially enhance the
fund's returns over time without adding undue risk to the fund's profile.

For the purpose of complying with the 80% test, the fund does not use the
notional value of a derivative instrument, but rather, uses the "mark-to-market"
value (i.e., the unrealized net gain or loss on an open derivative instrument)
of the derivative instrument. The "mark-to-market" value of a derivative
instrument will not be treated as an investment in securities backed by the full
faith and credit of the US government. By calculating the 80% test on the basis
of "mark-to-market" value, rather than the notional value, of derivative
instruments, the fund may invest a greater percentage of its assets in such
derivative instruments than would otherwise be the case.



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Although the fund's aggregate notional market exposure from derivatives employed
as part of the iGAP strategy may equal up to 100% of the fund's assets, the fund
normally limits the net notional value of all open iGAP-related derivatives
instruments, after aggregating the fund's long and short positions, to 20% of
the fund's net assets. In addition, the net "mark-to-market" value of all open
iGAP related derivatives instruments, plus any required initial margin payments,
is normally expected to be less than 5% of the fund's net assets. There can be
no assurance, however, that these limits will prevent the fund from incurring
losses due to its use of iGAP related derivative instruments.

Other Derivatives. The Advisor may also use derivatives and currency
transactions outside of the iGAP strategy for hedging purposes, in circumstances
where the Advisor believes they offer a more efficient means of gaining exposure
to a particular asset class or market or to maintain a high degree of liquidity
to meet shareholder redemptions or other needs while maintaining exposure to the
market.

Securities Lending. The fund may lend its investment securities in an amount up
to 33 1/3% of its total assets to approved institutional borrowers who need to
borrow securities in order to complete certain transactions.


The Main Risks of Investing in the Fund

There are several risk factors that could hurt the fund's performance, cause you
to lose money or cause the fund's performance to trail that of other
investments.

Interest Rate Risk. Generally, fixed income securities will decrease in value
when interest rates rise. The longer the effective maturity of the fund's
securities, the more sensitive it will be to interest rate changes. (As a
general rule, a 1% rise in interest rates means a 1% fall in value for every
year of duration.) As interest rates decline, the issuers of securities held by
the fund may prepay principal earlier than scheduled, forcing the fund to
reinvest in lower-yielding securities. Prepayment may reduce the fund's income.
As interest rates increase, slower than expected principal payments may extend
the average life of fixed income securities. This will have the effect of
locking in a below-market interest rate, increasing the fund's duration and
reducing the value of such a security. Because the fund may invest in
mortgage-related securities, it is more vulnerable to both of these risks.



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Agency Risk. Some securities issued by US government agencies or
instrumentalities are supported only by the credit of that agency or
instrumentality while other government securities have an additional line of
credit with the US Treasury. There is no guarantee that the US government will
provide support to such agencies or instrumentalities and such securities may
involve risk of loss of principal and interest. The full faith and credit
guarantee of the US government for certain securities doesn't protect the fund
against market-driven declines in the prices or yields of these securities, nor
does it apply to shares of the fund itself.

Derivatives Risks. Risks associated with derivatives include the risk that the
derivative is not well correlated with the security, index or currency to which
it relates; the risk that derivatives may not have the intended effects and may
result in losses or missed opportunities; the risk that the fund will be unable
to sell the derivative because of an illiquid secondary market; the risk that a
counterparty is unwilling or unable to meet its obligation; and the risk that
the derivative transaction could expose the fund to the effects of leverage,
which could increase the fund's exposure to the market and magnify potential
losses. There is no guarantee that derivatives, to the extent employed, will
have the intended effect, and their use could cause lower returns or even losses
to the fund. The use of derivatives by the fund to hedge risk may reduce the
opportunity for gain by offsetting the positive effect of favorable price
movements.

iGAP Risk. The success of the iGAP strategy depends, in part, on the Advisor's
ability to analyze the correlation between various global markets and asset
classes. If the Advisor's correlation analysis proves to be incorrect, losses to
the fund may be significant and may substantially exceed the intended level of
market exposure for the iGAP strategy.

As part of the iGAP strategy, the fund will be exposed to the risks of non-US
currency markets and global bond markets. Foreign currency rates may fluctuate
significantly over short periods of time for a number of reasons, including
changes in interest rates and economic or political developments in the United
States or abroad. Global bond markets may also fluctuate for the same or similar
reasons. As a result, the fund's exposure to foreign currencies and global bond
markets could cause lower returns or even losses to the fund. Although the
Advisor seeks to limit these risks through the aggregation of various long and
short positions, there can be no assurance that the Advisor will be able to do
so.



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Securities Lending Risk. Any loss in the market price of securities loaned by
the fund that occurs during the term of the loan would be borne by the fund and
would adversely affect the fund's performance. Also, there may be delays in
recovery of securities loaned or even a loss of rights in the collateral should
the borrower of the securities fail financially while the loan is outstanding.
However, loans will be made only to borrowers selected by the fund's delegate
after a review of relevant facts and circumstances, including the
creditworthiness of the borrower.

Other factors that could affect performance include portfolio management could
be wrong in the analysis of industries, companies, economic trends, the relative
attractiveness of different securities or currencies or other matters.

   Effective            on or about March 25, 2008, the following portfolio
                        managers will be added to the existing portfolio
                        management team as listed in the "Who Manages and
                        Oversees the Funds" section of the fund's prospectuses:


  Robert Wang                            Thomas Picciochi
  Managing Director of Deutsche Asset    Director of Deutsche Asset Management
  Management and Co-Manager of the       and Co-Manager of the fund.
  fund.                                    o Joined Deutsche Asset Management in
    o Joined Deutsche Asset                  1999, formerly serving as portfolio
      Management in 1995 as portfolio        manager for Absolute Return
      manager for asset allocation           Strategies, after 13 years of
      after 13 years of experience of        experience in various research and
      trading fixed income, foreign          analysis positions at State Street
      exchange and derivative                Global Advisors, FPL Energy,
      products at J.P. Morgan.               Barnett Bank, Trade Finance
    o Global Head of Quanitaive              Corporation and Reserve Financial
      Strategies Portfolio Managment:        Management.
      New York.                            o Senior portfolio manager for
    o Joined the fund in 2008.               Quanitaive strategies: New York.
    o BS, The Wharton School,              o Joined the fund in 2008.
      University of Pennsylvania.          o BA and MBA, University of Miami.



January 8, 2008
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               Please Retain This Supplement for Future Reference






January 8, 2008
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Supplement to the currently effective Statements of Additional Information for
the listed Fund:

DWS U.S. Government Securities Fund

--------------------------------------------------------------------------------

Effective on or about March 25, 2008, the following paragraph is removed as a
non-fundamental investment policy in the "Investment Restrictions" section of
the Fund's Statements of Additional Information:

The Fund may not enter into futures contracts or purchase options thereon unless
immediately after the purchase, the value of the aggregate initial margin with
respect to such futures contract entered into on behalf of the Fund and the
premiums paid for such options on futures contracts does not exceed 5% of the
fair market value of the Fund's total assets; provided that in the case of an
option that is in-the-money at the time of purchase, the in-the-money amount may
be excluded in computing the 5% limit.

Effective on or about March 25, 2008, the following disclosure will supplement
the information in the section entitled "Investment Policies and Techniques -
General Investment Objectives and Policies" of the Fund's Statements of
Additional Information:

Integrated Global Alpha Platform Strategy ("iGAP Strategy"). The Advisor seeks
to enhance returns by employing a global tactical asset allocation overlay
strategy. The global tactical asset allocation strategy, which the Advisor calls
iGAP, is a total return strategy designed to add value by benefiting from
short-term mis-pricings within global bond and currency markets. iGAP is
expected to have a low correlation to the performance of the fund's investments
in government securities.

The iGAP strategy combines diverse macro investment views from various
investment teams within Deutsche Asset Management. Because a single investment
approach rarely works in all market conditions, the teams are chosen to
diversify investment approaches thereby enhancing the expected return for a
given level of risk. The collective views are then used to determine iGAP's
positions using a disciplined, risk managed process. The result is a collection
of long and short investment positions within global bond and currency markets
designed to generate excess returns that have little correlation to major
markets. The bond and currency positions are then implemented by the iGAP
portfolio managers using futures and forward currency transactions. The iGAP
portfolio managers consider factors such as liquidity, cost, margin requirement
and credit quality when selecting the appropriate derivative or other
instrument. When used as a part of the iGAP strategy, derivatives and other
instruments generally will not be used for hedging purposes. For a more detailed
discussion of the derivatives and other instruments used as a part of the iGAP
strategy, see "Investment Policies and Techniques--Strategic Transactions and
Derivatives" in the Fund's statement of additional information.



               Please Retain this Supplement for Future Reference


January 8, 2008