Government alarm test on your mobile thing is TODAY at 3 pm

Can someone tell me what we are actually meant to DO in the case of a war related alert?

As far as I know, any nuclear bunkers and conventional bomb air raid shelters that exist are from WW2 and are out of use?

I don't believe the advice has changed. https://youtu.be/7yrv505R-0U It's not very practical with regards to the blast itself some of the stuff on fall out might be useful. Best advice, if the siren goes try and get a heavy wall between you and the city centre. It won't save you if you're close to the blast but might offer some protection against the initial radiation burst that would burn your skin. Then get iodine pills as soon as you can. Radioactive iodine is one of the more dangerous parts of fallout and taking the pills reduces the amount your body adsorbs.

I don't believe the advice has changed. https://youtu.be/7yrv505R-0U It's not very practical with regards to the blast itself some of the stuff on fall out might be useful. Best advice, if the siren goes try and get a heavy wall between you and the city centre. It won't save you if you're close to the blast but might offer some protection against the initial radiation burst that would burn your skin. Then get iodine pills as soon as you can. Radioactive iodine is one of the more dangerous parts of fallout and taking the pills reduces the amount your body adsorbs.

Since it's related: www.inverse.com/.../10099-vault-boy-s-rule-of-thumb-can-t-save-you-from-nuclear-fallout

Thank you