Cipher Code Challenge

For years people have relied on communications to govern countries and command  armies. People are only to aware of messages falling into the wrong hands, thus revealing precious secrets to rival nations.

As I am very interested in secret codes an ciphers I have devised a short cipher challenge for you try and break:

If you would like any tips or the answer don't hesitate to e-mail me.

--Start:--
dI]\ba h[j VPOW fd TZ_d` rQeN qNPfL UZ `X LXaa^ bb^ZZr^Z TV\oi ^gSg \Sc
eKNYZh\\ bZ eOn JnXRG] g`i ZS`X`` Wq qNb SeKmO`UNd _Pd QgWmU _Xd seJb^aKZS_
]aL kZL YQY^Z ^UbfW__ gXff_TK ^gRfXV hp PXO 9P\\[dSj `TY^ cZa `WZJ bjZh
Ld``^M aie KW_sXRTf ZX MUcpW og iic XV] ]_]` iY jjW cPZSSh g`[ `g SU^L V[ T
^^eqa[`^

T[mX f Ld^g YLM[ fl ]Ju gdX^ ^ WcUn ie Un gtl T`Zoa[aaT cUK[ Zc][] ZY
aYijRQlhJbie cSXX JZfgm G ac^f`PSU c VWRPk N`bN ZT]a c_]USmUQ kdc`bc bh
XZcLhS G LmSX`X*ZP[W I^ jcQ ]WZZRia lPYXa j` ^blhbWaaPdp ag pYW qdH`d Lp^
mb^c`aUW\ me anf ^lR]\r^nh Sn SU bQO dWlgeU HXW _p ]eZPbe_r_c VNXYo nf^RW TZj
cWf`r`S Oo kY fcS ,a`\oZjk UmUQ Ukq eZ[ ^QSj sN\dNbdnR fRh\_] YZ nX ^TX\][
UbheUqWJSghj hWIm GJXaYl sNk XY UMZ^ Za T XX[[!_MVb
--Finish--

Tips:

UbheUqWJSghj
emphatically

UMZ^
Dead