The war between good and evil, between right and wrong, goes on daily in the life of every Christian and in the life of every society. But, in principle , life is stronger than death, for Jesus resurrection has proven this. The resurrection is more powerful than the cross. Good is more powerful than evil, for Christ now reigns from on high. The legacy of the second Adam, Jesus Christ, is more powerful in history than the legacy of the first Adam.
Grace is more powerful than sin.
Not all Christians believe that they will go through the tribulation, although post-tribulation premillennialist do. Because the great tribulation is behind us. This is what David Chilton argues in The Great Tribulation . Jesus warned His people of a great tribulation to come in the very near future. And when ye shall see Jerusalem compassed with armies, then know that the desolation thereof draweth nigh.