Prior to representing the first district of Cavite to the House of Representatives in 2004, he first served in the Armed Forces of the Philippines as a cadet (1984–1988) and as a naval officer of the Philippine Navy (1988–2004).
•
While in UP, Jun took and topped the entrance examination for the Philippine Military Academy that he was sent by the government to the US Naval Academy (USNA) in Annapolis, Maryland where he earned his Bachelor of Science degree in Mathematics (1988) with distinction of being a consistent Dean's Lister in all the semesters he was there.
Joseph Stalin | Joseph Conrad | Saint Joseph | Joseph Haydn | Joseph Beuys | Joseph | Joseph Goebbels | Joseph II, Holy Roman Emperor | Joseph Barbera | Joseph Chamberlain | Joseph Brodsky | Franz Joseph I of Austria | Joseph Henry Blackburne | Joseph Banks | Joseph McCarthy | Joseph II | Joseph Campbell | Joseph and the Amazing Technicolor Dreamcoat | Joseph Priestley | Joseph Bonaparte | Joseph Pulitzer | Joseph Stiglitz | Joseph Paxton | Joseph Addison | Joseph Rothrock | Joseph Losey | Joseph Lister, 1st Baron Lister | Joseph Story | Joseph Whitworth | Joseph Pitton de Tournefort |