The term EMULATE ATTILA can be broken down into two crossword solutions: SACK (4 letters) and INVADE (6 letters). Attila the Hun was a leader of the Huns, a nomadic people from Central Asia who invaded Europe in the 5th century. He is known for his ruthless tactics, which included sacking and invading cities and towns. Therefore, to emulate Attila would be to follow in his footsteps by sacking and invading.