In this answerthis answer there is the mention of "weak alignment", followed by an indication that it is related to "resistance to truncated differential cryptanalysis".
What exactly is the difference between strong versus weak alignment?
How does it provide resistance to truncated differential cryptanalysis, and does it influence strength or weakness against any other techniques?
What ways can weak alignment be obtained? For example, is there a way to convert AES to have weak alignment (and would that be a good thing?)