Each of us is a feather in the wings of the Church. Only if we are rooted in her, and folded together in prayer like overlapping feathers, shall we enjoy that final flight to the heavens, made certain for Her by the mystical support of the Son drawing her to the Father on the winds of the Spirit. (A jarring conceit, perhaps, but it enriches my soul.)
Major Archbishop Sviatoslav Shevchuk, head of the Ukrainian Catholic Church, has asked Catholics around the world to pray one Our Father and one Hail Mary every day at 2pm EST (9pm in Ukraine) for the intention for a peaceful and nonviolent resolution to the crisis. Consider, as well, adding an intention to your Rosary entrusting the protection of the Ukrainian Church to the Mother of God.
Addendum: These photos from the Washington Post are striking, particular the one of Orthodox and Catholic clergy praying together.