Members of Parliament will vote later Tuesday on the proposed tier system as the country prepares to come out of lockdown. Critics say the measures will devastate businesses, especially pubs, which face some of the tightest restrictions. Johnson urged legislators to back the measures, saying the country must “hold our nerve” until vaccines are approved and distributed. But pubs and restaurants face strict limits in Tier 2 and closure in the topmost Tier 3. Other parts of the U.K. — Scotland, Wales and Northern Ireland — are all following their own local restrictions to curb the spread of the virus.