What seven year peace treaty? There is no seven year peace treaty mentioned in the Bible.
Dan 9:27 And he shall confirm the covenant with many for one week: and in the midst of the week he shall cause the sacrifice and the oblation to cease, and for the overspreading of abominations he shall make [it] desolate,
even until the consummation, and that determined shall be poured upon the desolate.
Rom 11:25 For I would not, brethren, that ye should be ignorant of this mystery, lest ye should be wise in your own conceits; that
blindness in part is happened to Israel, until the fulness of the Gentiles be come in.
Rom 11:26 And so all Israel shall be saved: as it is written,
There shall come out of Sion the Deliverer, and shall turn away ungodliness from Jacob:
Rom 11:27 For this [is] my covenant unto them, when I shall take away their sins.
This seven year peace treaty nonsense is not biblical. Jesus confirmed the covenant (the new covenant) with many during his 3 1/2 year ministry. He will confirm the covenant with many more - a remnant of Israel (Rev 7) for the final 3 1/2 years at His return. In the middle of the week, the sacrifice and oblation ceased because Christ was killed, ending the need for sacrifices and allowing the gentiles to come in.
Because of Israel's abominations, described in the prophets, Israel is left desolate until the end.
Mat 23:38 Behold, your house is left unto you desolate.
Mat 23:39 For I say unto you, Ye shall not see me henceforth, till ye shall say, Blessed [is] he that cometh in the name of the Lord.