Such regimes are therefore inherently belligerent and democratic nations must always be on guard against them.

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We must be on guard against cybersecurity becoming cyber-pork as well.

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Many but not all ETF strategists use backtesting, and investors who are accustomed to mutual funds, where regulations generally forbid this practice, need to be on guard against it, experts say.

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But she warned members of the public to be on their guard against the virus.

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It is exactly this sort of reactionary, ill-thought-out nonsense that we should be on our guard against in the weeks and months ahead.

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In fact, we should be most on guard against ourselves.

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You have to be constantly on your guard against being robbed, beaten or dragged into cars by strangers.

BBC

Governments spend vast sums on defence to guard against the remote chance that their countries may be invaded.

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Families should be on the lookout, and work with experienced legal and financial professionals, to help guard against financial exploitation.

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