Original sentence: The Tết Offensive was a military defeat for the Communist forces, as neither the Viet Cong nor the North Vietnamese army achieved their tactical goals.The operational cost of the offensive was dangerously high, with the Viet Cong essentially crippled by the huge losses inflicted by South Vietnamese and other Allied forces
Edited sentence: Furthermore, the operational cost of the offensive was dangerously high, with the Viet Cong essentially crippled by the huge losses inflicted by South Vietnamese and other Allied forces.The Tết Offensive can be considered a crushing military defeat for the Communist forces, as neither the Viet Cong nor the North Vietnamese army achieved any of their tactical goals