Auli, Uttarakhand: For American soldiers taking part in the 18th edition of the annual Yudh Abhyas with India, the picturesque town of Auli in Uttarakhand gave them all they could hope for and more — a challenge to their abilities, a trip down memory lane to Vietnam, and dal tadka. “It has been difficult at times. First week was definitely challenging. I was out of breath very quickly. But now that I am acclimatised, I can perform at exactly the same pace as I could at sea level,” US Army Specialist Solanka told ThePrint. The high altitude was a challenge…