The Battle Bunker is the secondary ability of the Combat Engineer, it gives your infantry an extra protection and buffs their range by 100%.

战斗碉堡是战斗工程师的第二能力，它可以为你的步兵提供一个额外的保护，使他们的射程增加100%。

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You may have heard of the Boston Massacre, the Boston Tea Party and the Battle of Bunker Hill.

VOA: special.2010.04.04

Born in Braintree, Massachusetts, in 1767, he watched the Battle of Bunker Hill from the top of Penn's Hill above the family farm.

WHITEHOUSE: John Quincy Adams

By the ages of eight to nine, pupils will be expected to understand the importance of the Boston Tea Party and the Battle of Bunker Hill.

BBC: Massachusetts: Pioneering Gove's knowledge curriculum

In 1775, in the American War of Independence, British forces defeated the Americans at the Battle of Bunker Hill, which took place at Breed's Hill near Boston.

CNN: Wednesday,