guard of honour
noun [ C usually singular ] UK (US guard of honor) uk/ˌɡɑːd əv ˈɒn.ər/ us/ˌɡɑːrd əv ˈɑː.nɚ/
仪仗队
a group of people, usually soldiers, who are arranged in a row at a special occasion such as a marriage ceremony or an official visit, to honour someone very important