It’s hard to believe that the Ice Bucket Challenge, which raised funds for the ALS Association and research for Lou Gehrig's disease, was two years ago.

Now the latest viral charity cause sweeping the internet has been in aid of war veterans. It hopes ‘to honour those who serve and to raise awareness for veteran suicide prevention through education and empowerment.’ The 22 push-ups are for the twenty two war veterans who commit suicide every day.

Chris Pratt, Anna Faris, John Krasinski, The Rock and Chris Evans have all done the #22PushupChallenge and spoken out for the cause.

Check it out: