Thread: Whats my problem here?

I cant figure out what im doing wrong here

Code:

#include <iostream>
#include <cstdlib>

using namespace std;

struct User
{
       int UHP; // Users Current Hit Points
       int max_UHP; // Users Maximum Hit Points
};
struct Challenger
{
       int CHP; // Challengers Hit Points
       int max_CHP; // Challengers Maximum Hit Points
};
int main()
{
    int Command;
    
    User Player;
    Challenger Enemy;
    
    Player.max_UHP = 100;
    Player.UHP = 100;
    Enemy.max_CHP = 100;
    Enemy.CHP = 100;
    int UATK = rand()%10; // Users Attack points
    int CATK = rand()%10; // Challengers Attack points

    cout<<"As your walking down a path a cloaked swordsman ambushes you.\n";
    cout<<"He then challenges you to a fight and you humbly accept.\n";
    cout<<"You can Attack.\n";
    cin>> Command;
    if ( Command == "AttacK" || Command == "attack" ) { Enemy.CHP - UATK;
    cout<<"You took out ">> UATK <<" points.\n"; }
    cin.get();
}