The administration and other Western governments are scrambling to keep up with the mounting danger ISIS-K poses.
Before this year, U.S. and other Western officials believed ISIS-K had the intent but not the ability to orchestrate attacks abroad.
It was the deadliest terrorist attack in Europe since 2004.
ISIS-K also launched a major attack in Iran this year that killed dozens, and other plots were disrupted in Europe.
The Taliban sees ISIS-K as a threat to its rule and has launched a series of attacks on the group.
Organizations:
Biden, U.S ., Moscow's, Moscow's Crocus City Hall, ISIS, Embassy, Taliban, White House National Security Council
Locations:
Kabul, Afghanistan, U.S, Moscow's Crocus, Europe, Iran, Africa, Khorasan, Washington, United States, Doha