North Korean authorities have introduced six new propaganda posters to celebrate last month’s successful spy satellite launch, according to state media Thursday, seeking to rouse public support for military development even as the government calls for people to endure “hardships.”

The posters continue a trend started last year of pushing nuclear missile-related imagery and slogans more prominently in public spaces, following the removal of most such propaganda from streets in 2018 amid warming relations with the U.S. and South Korea.