亲睦邻邦

friendly neighboring countries / to keep up good relations with neighboring countries

parent / one's own (flesh and blood) / relative / related / marriage / bride / close / intimate / in person / first-hand / in favor of / pro- / to kiss / (Internet slang) dear

parents-in-law of one's offspring

friendly / amicable / to keep up harmonious relations (with sb)

amicable / harmonious

to get on well with one's neighbors / amicable relationship with one's neighbor

neighbor / adjacent / close to

variant of 鄰|邻[lin2]

neighboring state / adjacent country

country / nation / state