Hizb ut Tahrir is holding countrywide rallies on Sunday 17 April 2011 under the title "Eject US, Eject the traitor rulers - Establish the Khilafah". The purpose of these rallies is to remind Pakistan's Armed Forces of its duty and to convince her to establish the Khilafah by uprooting this system. It is the responsibility of every Muslim that not only should he participate in these rallies but he should also convey this message to all his relatives and friends in the Armed Forces. The day is not far when this rotten system will come tumbling down by a single powerful shock and the kufr will vanish and the world would be enlightened with the light (Noor) of Islam.
وَقُلْ جَاءَ الْحَقُّ وَزَهَقَ الْبَاطِلُ ۚ إِنَّ الْبَاطِلَ كَانَ زَهُوقًا
"Say: ‘Truth has come and falsehood has vanished. Falsehood is always bound to vanish.'" [al-Isra, 17:81]
http://khilafah.com/index.php/activism/asia/11402-17th-april-country-wide-rallies-in-pakistan