Since the start of U.S. involvement in the Russo-Ukrainian War, the Biden administration established a series of clear red lines intended to limit the war's escalation and avoid direct confrontation with Russia.

However, at every juncture, President Biden has buckled in the face of outside pressure and crossed each of these lines. The last frontier he has yet to reach is putting U.S. service members on the ground in Ukraine, but unfortunately, we seem to be halfway there.

Initially, the Biden administration was firm in its refusal to send certain military assistance to Ukraine. For instance, President Biden said early on in the war that the U.S. would not send American M1 Abrams tanks to Ukraine because they were too complex for Ukrainian troops to operate. But in January 2023, the Department of Defense announced it would be supplying the tanks to Ukraine after all.