There are some small countries who do not maintain embassies in all countries with which they have diplomatic relations. It is just too expensive Sometimes they appoint an ambassador to serve several countries and he is based ion a physical embassy in one of them. He occasionally travels to the others as needed, but a consulate handles every day needs. When my cousin was the Consul for the Central American country they did not maintain an embassy in Israel. When they finally established one it is in an office in Herzylia Pituach and is not staffed by a resident ambassador.
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