In the late 1940s, Aflaq and al-Bitar gave free lessons on Ba'athist thought, and in 1948 they established the newspaper "al-Ba'ath" (English: "rebirth"/"resurrection"). Aflaq tested the Ba'ath Party's strength during the 1948 Arab–Israeli War after early Syrian defeats – he led several demonstrations against the government led by President Shukri al-Quwatli. He personally led demonstrations, and claimed that al-Quwatli, a landowner, was a corrupt and capitalistic politician, who was to blame for the Syrians army's defeat. Aflaq called for al-Quwatli's resignation, and wrote several "al-Ba'ath" articles criticising his presidency and his prime minister, Jamil Mardam Bey. Aflaq was later arrested on the orders of al-Quwatli's prime minister Bey. Al-Quwali's government was brought down in a coup d'état led by military officer Husni al-Za'im. Al-Za'im banned all parties, claiming that Syria was not ready to establish a liberal democracy yet. Aflaq, who had been set free, was rearrested during al-Zai'm's presidency and sent to the notorious Mezzeh Prison. Al-Za'im's rule did not last for long, and in August 1949, he was toppled, and Hashim al-Atassi, who was democratically elected, took his place. Al-Atassi established a national unity government, and Aflaq was appointed to the post of Minister of Education, the only government post he would ever hold; he held it from August to December 1949. Al-Attasi's presidency did not last for very long either, and in 1951 Adib Shishakli took power in a military coup.