The Nazi loss in the Battle of the Bulge sealed the Third Reich's fate-- the Allies were free to invade Germany, causing its downfall.
First Islam is a noun and means the religion of the Muslims, a monotheistic faith regarded as revealed through Muhammad as the Prophet of Allah. Another meaning is the Muslim world.
now signify is a verb and means be an indication of. Some synonyms are be evidence of, be a sign of, mark, signal, mean, spell, be symptomatic of, herald, indicate; literary betoken
Explanation
The Merrimack entered into battle against the wooden Union ships at Hampton Roads. The Union cannons fired shot after shot at the Merrimack with no success. The cannonballs bounced right off. The Merrimack then took aim at the Union ship the USS Cumberland. It smashed its iron ram right into the side of the ship. The Cumberland sunk. Then the Merrimack went after the USS Minnesota, damaging the ship and forcing it to ground. After hours of fighting, the Merrimack returned to Norfolk for the night.
