Ramadan probably has more in common with Yom Kippur, the Jewish day of atonement, than with Lent. Although Yom Kippur is just one day, the fasting regimen is similar to Ramadan, as is the notion of submission and forgiveness. That’s all I know sorry -.-
Voting and serving in the military are voluntary personal responsibilities or rights in the United States. The United States has a voluntary military and therefore it is not required that citizens join or work in the military unless they voluntarily choose to do so. In addition, it is not compulsory that citizens vote and instead it is something that they voluntarily decide to do.
Broadly the Federal artillery was equipped with rifled guns firing shells, while the Confederate artillery was equipped with the old style smooth bore cannon, of lesser range and accuracy; firing ball, grape shot and case shot.