 Complete the following phrase:  Aided by troops from the Cossack Hetmanate, Lupu defeated a large Wallachian force of 9,000 soldiers, commanded by Buicescul, and chased away Ștefans 300 Moldavian renegades. Here, Costin suggests, Buicescul revealed himself to be an incompetent general, allowing his soldiers to be thinly deployed, and then decimated, along the Milcov. One essential flaw, pointed by other historians, was the Wallachian armys insufficient firepower. Lupus invasion was nevertheless overturned. Buicesculs own troops were again scattered following a direct confrontation with Tymofiy Khmelnytskys cavalry at Șoplea, but Prince Matei was able to recover the loss 