Turkey’s parliament is widely expected to approve Sweden’s NATO membership bid on Tuesday, clearing the biggest remaining hurdle to expanding the Western military alliance after 20 months of delays.

Turkey’s general assembly, where President Tayyip Erdogan’s ruling alliance holds a majority, voted 287-55 to approve the application that Sweden first made in 2022 to bolster its security in response to Russia’s full-scale invasion of Ukraine.

All NATO members need to approve applications from countries seeking to join the alliance. When Sweden and Finland asked to join in 2022, Turkey raised objections over what it said was the two countries’ protection of groups it deems terrorists.