Terrorist attacks like the one in Berlin will continue to happen if the U.S. plays defense, former CIA Director James Woolsey said Tuesday.

“This is all going to happen again and again and again as long as we keep playing defense,” Woolsey told “Fox and Friends.”

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Woolsey, who is currently serving as an adviser to President-elect Donald Trump Donald John TrumpBiden on Trump's refusal to commit to peaceful transfer of power: 'What country are we in?' Romney: 'Unthinkable and unacceptable' to not commit to peaceful transition of power Two Louisville police officers shot amid Breonna Taylor grand jury protests MORE, compared the U.S. fighting terrorism to playing in a hockey game.

“It’s as if we’re in a big, really important hockey game and we deploy our entire team as goalies. We’re going to lose,” he said.

“We can try to catch people after the fact. We can try by vetting extreme people out. But if we keep going this way, we’re going to continue to have terrorist attacks of major proportion.”

On Monday, a truck drove into a Christmas market in Berlin, killing 12 people. German Chancellor Angela Merkel said Tuesday to “assume at the current time that it was a terrorist attack,” The New York Times reported.