bulwark

Cassidy’s intent to serve as a one-man bulwark against measles, polio and dozens of other ailments may be sincere.

AliKhan said in her ruling that the admin's “actions in this case potentially run roughshod over a ‘bulwark of the Constitution’ by interfering with Congress’s appropriation of federal funds.”

Now California legislators are fortifying the state’s bulwarks against Immigration and Customs Enforcement and the administration’s tactics.

On a national level, enshrining community as a civic value and way of life must serve as a local bulwark against natural disaster and larger political forces.

Paine’s rebuke of kings and aristocrats was grounded in a democratic bulwark: fair representation.