Martyrdom in Christianity and Martyrdom in Islam

We know of course that there are many martyrs for the Lord Jesus Christ and there have been many within the past centuries. However, the concept of martyrdom exist in Islam as well. One may wonder: what are the difference between Martyrdom in Christianity and Islam? There are numerous differences.  For starters, the Quran commands Muslims to fight non-Muslims:

 Qur’an 9:29—Fight those who believe not in Allah nor the Last Day, nor hold that forbidden which hath been forbidden by Allah and His Messenger, nor acknowledge the Religion of Truth, from among the People of the Book, until they pay the Jizyah with willing submission, and feel themselves subdued.

Qur’an 9:73—O Prophet! strive hard against the unbelievers and the hypocrites and be unyielding to them; and their abode is hell, and evil is the destination

Therefore idea of Islamic martyrdom is found in this verse:
          
               Verily, Allah has purchased of the believers their lives and their properties; for the price that theirs shall be the Paradise. They fight in Allah's Cause, so they kill (others) and are killed. Sura 9:111

In essence, martyrdom in Islam is when someone is killed in the process of killing others. He is doing it so he can have a place in Heaven as these hadiths clearly state:

Sahih al-Bukhari 2787—Allah guarantees that He will admit the Mujahid in His Case into Paradise if he is killed, otherwise He will return him to his home safely with rewards and war booty.”
Sahih al-Bukhari 2810—Narrated Abu Musa: A man came to the Prophet and asked, “A man fights for war booty; another fights for fame and a third fights for showing off; which of them is in Allah’s Cause?” The Prophet said, “He who fights that Allah’s Word (i.e., Allah’s religion of Islamic Monotheism) be superior, is in Allah’s Cause.”
Muslims have no assurance of Salvation. So it shouldn't surprise anyone that 19 Muslims decided to fly planes in the Twin Towers and the Pentagon on September 11th, 2001.

Martyrdom in Christianity is different. In Christianity, you don't kill so you can get into heaven and don't kill non-Christians. In Christianity, Christian martyrs join Jesus in dying to save, not dying to kill. In their own sufferings, they extend Christ’s sufferings to those for whom he died (Colossians 1:24). The other difference is that they call death gain not because of the secondary benefits of paradise, but because “to depart and be with Christ . . . is far better” (Philippians 1:23).

In Christianity, you are martyred because you love Jesus Christ more than your life, family, or possesions. Hopefully I and everyone of my brothers and sisters in Christ will be willing to die for him because He is worthy that we should do so.