This Is War is a major leap forward for Thirty Seconds to Mars, one that cements the trio (lead singer and guitarist Jared Leto, drummer Shannon Leto and guitarist Tomo Milicevic) as a world-class arena-crushing rock band. The L.A. Times calls This Is War 'combative'sinister'the most confident-sounding thing the band has done.' Alternative Press echoes the sentiment, giving it four stars and hailing the album as 'an artistic triumph for Thirty Seconds To Mars' and Kerrang! Magazine agrees, calling it the band's 'strongest and most accomplished work to date.