Washington Post: “Although many barriers would drop away if there were a declaration of war, the hazy period before a military engagement would present a major problem. NATO has just a skeleton force deployed to its member countries that share a border with Russia. Backup forces would need to traverse hundreds of miles. And the delays — a mixture of bureaucracy, bad planning and decaying infrastructure — could enable Russia to seize NATO territory in the Baltics while U.S. Army planners were still filling out the 17 forms needed to cross Germany and into Poland.”
“During at least one White House exercise that gamed out a European war with Russia, the logistical stumbles contributed to a NATO loss.”