Could the war end before American entry?

Would success at Gallipoli end the war before the United States entered in 1917?

It could, because a supplied Russia keeps pressure on Germany, but the wider political consequences are necessarily uncertain.

An Allied victory without American troops remains possible even though American industry would still profit from supplying the coalition. Such an outcome would complicate the United States' rise to global leadership and leave a very different Russia in the interwar balance. American economic involvement could therefore grow without the political and military consequences of battlefield entry in 1917. The later consequences remain highly uncertain, with no single replacement timeline offered.