The threats from Iran
President Biden changed US policy towards the Middle East in 2020. He pulled out of Afghanistan too suddenly, losing a crucial air base and undermining his allies. It led directly to the Taliban taking the country over, after 20 years of the west losing lives and spending huge sums to stop them. He then tried to get a negotiated settlement with Iran. President Trump had negotiated successfully with the Gulf states to achieve their peace with Israel and to try to do the same with Saudi. All agreed Iran was a threat.
President Biden has ended up with worse relations with Saudi and the Gulf states, with OPEC pushing up oil prices by witholding production and now with US forces shooting down Iranian drones and missiles. Iran was always constructing a ring of hostile forces to the west with the Houttis in Yemen now firing on civilian cargo ships, with Hezbollah in Lebanon , Iraq and Syria and Hamas in Gaza.
The UK needs to be super vigilant to stop terrorists gaining access, to continue to work closely with allies to ensure good intelligence