Would a state in the Oregon Territory be allowed to join as a slave state?

Yes

Explanation: Oregon Country's provisional government, which was led by Peter Burnett, a former slaver holder who came west from Missouri by wagon train, passed the law in 1844 — 15 years before Oregon became a state. The law allowed slave holders to keep their slaves for a maximum of three years.

battle of saint-mihiel, (12–16 september 1918), allied victory and the first u.s.-led offensive in world war i. the allied attack against the saint-mihiel salient provided the americans with an opportunity to use their forces on the western front en masse.

explanation:

b toward the volcano.landward. the landward side of something is the side nearest to the land or facing the land, rather than the sea.