Sultan Ali now proposed to Babur that they should enter into a treaty of alliance and mutual co operation to which Babur willingly agreed. attended by a limited number of followers But as the autumn was already drawing to a close and winter fast approaching and as the country round Samarkand exhausted by the presence of so many armies was altogether unable to furnish the requisite provisions and provender for the troops all the invading princes were to withdraw into their own territories. However, Babur and Sultan Ali decided that as soon as the winter season was over they would return and besiege the city again.