When will Isis be actually defeated?

Isis are still around, still plotting to attack the West, still recruiting foreigners, still a big threat to our security and lives. They were supposed to have been defeated in Iraq and mostly defeated in Syria, and crippled in Libya and constantly targeted in Afghanistan. But they remain a threat. It's always dangerous to say any terrorist organisation has been defeated. Look at al-Qaeda, they're not the threat they posed under Osama bin Laden but they haven't gone away, especially in Yemen. The best bit of news was the confirmation that al-Qaeda's chief bombmaker had been killed. Ibrahim al-Asiri had been a mighty and dangerous thorn in the flesh of the West for years, designing increasingly sophisticated explosive devices. His death is a major blow to al-Qaeda. But they're still in Afghanistan, Pakistan, Syria, Yemen and a host of other places. The same with Isis. Just when you think they're all gone from Iraq, they stay fighting in Syria and start up training camps in northern Afghanistan. Neither al-Qaeda nor Isis are defeated. What worries me is that the US is now so obsessed with preparing for war with Russia or China that these terrorist groups will slip down the list of priorities. That would be dangerous for all of us.