[dryoasis88]

First off, where are you traveling? That would really make a difference in your decision, what shots he needs, and whether or not he can even come at all. Some airlines have a certain age that you can travel with them. Since your puppy is 2 months now, it will be just 5 month when you travel.
Second, your little one won't need to be neutered until you return, as he will be too young beforehand. I waited until my dog was over a year to have him neutered, but he was also quite small. It really depends on the size of the dog in that case. Most people wait until at least 6 months, if not longer. I don't know as much about this, but there is plenty of information on this forum, which I also used to inform my decision.
I personally would wait, as it is really difficult to have success training and house breaking a dog while traveling. The chance is that the puppy will have to be trained and house broken again when you return from your trip. This happened to me after my dog was completely house broken, but only 8 months old. I took him to the US (from Germany) for 6 weeks and when I returned, we had to start almost new.
It would, however, offer a great chance to socialize the puppy to so many different experiences. I would weigh the pros and cons very carefully and get some more opinions. Most people will recommend not traveling for the first 2-3 months after getting a dog, but sometimes it can't be avoided. A 3 month extended stay abroad is however quite stressful for a little puppy.
If you have any questions about traveling with your dog to the EU (From the US), you can message me and I will be happy to answer your questions.
Hope all goes well and don't be discouraged! Whether you get a puppy now or after your trip, I am sure you will love him very much and take great care of him.