I Cannot Understand

I cannot understand why the clergy bless the troops for war
To fight for their governments in war zones afar
To shoot at those who to them are strangers and wish on them ill
Despite Moses fifth commandment which states thou shalt not kill
For to kill for their government interests or else for to die
The meaning of what it takes to  be a good patriot is based on a lie
Some young people's need to be heroes can be a self absorbing thing
Though not all of them return home to hear others their praises sing
And they will never again walk in a war street parade
It is out of dead war heroes more young war heroes are made
And i does find it rather puzzling nonetheless
Why the clergy God's earthly disciples does bless
The troops before they are bound for war in a far away land
I personally find this quite hard to understand.