After the second world war, Europe was developing space launch capability (multiple governments and companies in Europe joined together to do this). USA said, don't waste your money on that, you can use American launchers. So it didn't continue. Some time later, European commercial sats that competed with American ones couldn't get launch opportunities on American rockets. So then Europe developed its own launcher.
After the second world war, Europe was developing space launch capability (multiple governments and companies in Europe joined together to do this). USA said, don't waste your money on that, you can use American launchers. So it didn't continue. Some time later, European commercial sats that competed with American ones couldn't get launch opportunities on American rockets. So then Europe developed its own launcher.
EDITed to remove caveats, after checking that it really is accurate: https://www.inventingeurope.eu/knowledge/the-unfinished-symp...