Russia wants Ukraine to be abandoned without any help from the West, so they'd continue to strike and maim with impunity. The sad reality though is that USA and European Union has continued to appease the Kremlin much to the disappointment of Ukraine. Their reasons being that they don't want the war to escalate. But the truth is that you can't stop escalation by appeasing a dictator. Rather he would be emboldened to advance with impunity.
Having sensed the weakness shown so far by the west, Russia is capitalizing on that to threaten anyone who tries to supply weapons to the Ukrainian Military. This is where America and Europe has to draw the lines and move in with full intent by supplying Kiev with all the weapons they needed to prosecute this war. Not only with their self defense, but to be armed with the ability to launch great offensives against the Russians.
Ukraine should not only defend. They should be able to attack and hit Russian territories. That's the only way to balance the equation and possibly tilt the war in favor of Ukraine.
Ukraine has held back the supposed super power for 3 months, limited them to the border towns. The last thing Russia would want is trying to goad a 'Real War Tested Superpower' into a direct confrontation. Russia is not in the same league with the US when it comes to conventional warfare and they know it.
You can see from the latest map that Russia has not been able to advance beyond the border towns and the few coastal cities, some of which they have been pushed back from, town after town. You can't win a war by simply defending your territory. You need to launch equal or surpassing devastation against your enemy in order to deter them.
THE US SUPPLY TO UKRAINE SO FAR 1. The Javelin anti-tank missiles
2. Switchblade drones
3. Artillery and body armor
4. Some high-tech equipment like laser-guided rocket systems
5. Surveillance radar
6. Mi-17 helicopters
This was detailed in a recent list circulated by the Department of Defense.
Increase in the supply of offensive lethal weapons to Ukraine will help stop Putin and accelerate the end to his madness. This stupid war has to end now.
Note: I've never been in support of straining the USA resources to fight foreign wars that does not concern us but this is different. Ukraine will pay for the weapons and a dictator has to be stopped before it's too late.