# all my mighty men

"all my strong soldiers"

# an assembly

"an army" 

# to crush my vigorous men

"to defeat my strong youg men"

# The Lord has trampled ... in the winepress

"It is as though the Lord has trampled upon the virgin daughter of Judah in a winepress" or "The Lord has punished the virgin daughter of Judah has harshly as a winemaker stomps on grapes to squeeze out the juice"

# the virgin daughter of Judah

This is a poetic name for Jerusalem.