The Pentagon now plans to buy 20 of the radar-evading aircraft, at about $2.2 billion a plane.
Meanwhile, the Pentagon is planning to expand its military presence in the region.
The Pentagon had originally planned to send nearly 40,000 troops and 600 warplanes.
The Pentagon has been planning a possible operation, but hardly with enthusiasm.
The Pentagon has planned to send the force in stages.
To make the additional budget reductions, the Pentagon is planning to cut troops and weapon systems.
Also, the new plan to defend the cities is going to require more than the Pentagon had planned for.
The Pentagon had planned to fly 100 or more shuttle missions before the year 2000.
That is about $1 billion less than the Pentagon had initially planned to ask for the 1991 budget.
The Pentagon now plans to shift money in its budget to pay for the unanticipated expenses.