Left just two weeks
Ukraine is running so low on ammunition that it will run out of air defence missiles to defend its cities by the end of the month, according to reports.
	
		 
This is where Europe has to step up until USA passes their next batch of aid.
The following are used to intercept cruise missiles.
- Germany 

, Greece 

, Poland 

, Romania 

, Spain 

, Sweden 

 and the Netherlands 

 all operate Patriot air defense systems featuring PAC 2 and PAC 3 missiles. Each of those countries can "dig deep" to send some extra missiles to Ukraine.
- Germany 

, Greece 

, Sweden 

, Italy 

 and Spain 

 all use IRIS-T missiles that Ukraine needs for their SLS and SLM air defense systems
- France 

 and Italy 

 both use Aster 30 missiles for SAMP-T air defense systems that they've sent to Ukraine.
- Belgium 

, Canada 

, Czech Republic 

, Finland 

, Greece 

, Italy 

, The Netherlands 

, Norway 

, Poland 

, Portugal 

, Romania 

, Sweden 

 and Turkey 

 all use AIM-9 sidewinder variants that Ukraine needs for their NASAMS air defense systems.
- Belgium 

, Canada 

, Denmark 

, Czech Republic 

, Germany 

, Finland 

, Greece 

, Italy 

, The Netherlands 

, Portugal 

, Norway 

, Poland 

, Romania 

, Spain 

, Turkey 

, United Kingdom 

 and Sweden 

 all use AIM-120 AMRAAM variants that Ukraine needs for their NASAMS air defense systems.
- United Kingdom 

 uses the ASRAAM missile that Ukraine launches from the launch vehicles that Britain supplied Ukraine earlier this year.
There are THOUSANDS of viable interceptors across Europe, it's simply about Europe having the will power to donate large quantities of them (say 500 of mixed variants) to keep air defense against cruise missiles and some balistic missiles, strong.
As we speak, Raytheon is maxing out it's production lines for AIM-120 AMRAAM and AIM-9X interceptors. They are now building 1200 AMRAAM and 2500 Sidewinders per year, many of which they will export to European allies. There is no reason that a healthy number of those missiles capable of intercepting Russian cruise missiles, can't go to Ukraine. 
Meanwhile, 550 Patriot PAC-3 missiles are built each year, while 200+ PAC 2 missiles are built in Germany and  hundreds more are built under license in Japan. Many of those missiles could be sent to Ukraine as well, to restock their Patriot systems.