Israel already operates 100-plus overseas polling stations, but reserves them for diplomats, state employees and select emissaries; everyone else must return home to vote, standing in contrast to broader systems in much of the democratic world

Some 120 citizens abroad challenge removal from voter registry without their knowledge, seek to take case to High Court

Israelis whom the government classifies as nonresidents are assigned a designation known as "Code 51" and removed from the voter registry, even though they retain their…