Please solve with lingo and excel solver. Send the pictures. In the end of the question please say the directions. Military Planning, Shepard and Associates $(1988).$ The Red Army $($R$)$ is trying to invade the territory defended by the Blue

Army $($B$).$ Blue has three defense lines and $200$ regular combat units and can draw also on a reserve pool of $200$ units. Red

plans to attack on two fronts, north and south. Blue has set up three east$-$west defense lines, I, II$,$ and III. The purpose of

defense lines $1$ and $2$ is to delay the Red Army attack by at least $4$ days in each line and to maximize the total duration of

the battle. The advance time of the Red Army is estimated by the following empirical formula:

Battle duration in days $=a+b(\frac{\text{B}\text{l}\text{u}\text{e}\text{u}\text{n}\text{i}\text{t}\text{s}}{\text{R}\text{e}\text{d}\text{u}\text{n}\text{i}\text{t}\text{s}})$

The constants a and $b$ are a function of the defense line and the north$/$south front as the following table show:

The Blue Army reserve units can be used in defense lines II and III only. The allocation of units by the Red Army to the

three defense lines is given in the following table:

How should Blue allocate its resources among the three defense lines and the north$/$south fronts?