Is there some way that protest against a war even during a time of war-can be considered patriotic? If yes give examples of how it can be patriotic.

What is patriotic and what is unpatriotic is very much a
subjective judgement. Although in periods of war there is a kind of surge in intolerance
among government as well as general public towards anything which appears to be even
slightly opposed to, or critical of, the official government action. Many a times such
patriotic feelings are based more on national pride than long term national interests.
Real criteria of patriotism is not just what people at a particular time think to be
patriotic, but the intention of the person in acting in a particular way. If a person is
acting with the objective of securing good of the country, he or she is definitely
patriotic, irrespective of what others may think about him or
her.

As a matter of fact, the person protesting against war
during war time, with the intention of good of the country, is likely to be much more
patriotic than the millions of people who protest against war in time of peace. A person
protesting against war in war time risks a lot to secure national interest. While
marches in protest against war during peace time may be doing this just as way of
bringing exciting in life. Majority of such people may back out of such protest at the
slightest hint of major personal risk.