I’ve pointed out more than once that questioning the accuracy of the carefully curated narrative re Putin’s war doesn’t equate to ‘justifying’ Putin’s response, like most here are desperate to do.
But, just a little googling of an inquisitive citizen appears that we’ve been sending lots of troops to Ukraine for a while.
https://www.7atc.army.mil/JMTGU/
Excerpt:
Joint Multinational Training Group-Ukraine is the name given to the mission of training, equipping, training center development and doctrinal assistance to the Ukrainian armed forces. 7th Army Training Command oversees the JMTG-U mission at the
Yavoriv Combat Training Center, most recently manned by Task Force Gator, 53rd Infantry Brigade Combat Team, Florida Army National Guard.
In February, U.S. European Command repositioned Task Force Gator to Grafenwoehr, Germany.
Mentor and Advise Armed Forces of Ukraine Trainers: Task Force Gator Soldiers, joined by NATO allies and partners, mentor and advise Armed Forces of Ukraine Observer Controller / Trainers at the Combat Training Center located near Yavoriv. This is accomplished by employing a "train-the-trainer" approach, enabling Ukrainians to take the lead in training rotational brigades.
Enable Combat Training Center Capability and Capacity: Task Force Gator works with Armed Forces of Ukraine partners at the Combat Training Center - Yavoriv to develop and implement systems to improve combat training and increase training center capacity. Combat Training Center - Yavoriv delivers Brigade-and-below collective training for Armed Forces of Ukraine Brigades.