Prolonged attack Crossword Clue

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The answer to the crossword clue "prolonged attack" is SIEGE. It is a 5-letter word that refers to a military operation in which an armed force surrounds a city or other fortified place and cuts off its supplies in order to force its surrender.

Here are some other possible answers to the crossword clue, depending on the length of the required answer:

ASSAULT (6 letters)

CAMPAIGN (7 letters)

OFFENSIVE (9 letters)

BATTLE (6 letters)

SKIRMISH (8 letters)

I hope this helps!